CN107051150A - Municipal drainage working space air cleaning unit and method - Google Patents
Municipal drainage working space air cleaning unit and method Download PDFInfo
- Publication number
- CN107051150A CN107051150A CN201710408742.1A CN201710408742A CN107051150A CN 107051150 A CN107051150 A CN 107051150A CN 201710408742 A CN201710408742 A CN 201710408742A CN 107051150 A CN107051150 A CN 107051150A
- Authority
- CN
- China
- Prior art keywords
- air
- working space
- municipal drainage
- uviol lamp
- air inlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 18
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000002245 particle Substances 0.000 claims description 12
- 238000010521 absorption reaction Methods 0.000 claims description 11
- 230000008929 regeneration Effects 0.000 claims description 10
- 238000011069 regeneration method Methods 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 8
- 230000001172 regenerating effect Effects 0.000 claims description 8
- 239000010425 asbestos Substances 0.000 claims description 7
- 229910052895 riebeckite Inorganic materials 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 4
- 239000013618 particulate matter Substances 0.000 claims description 4
- 238000000746 purification Methods 0.000 claims description 2
- 238000004064 recycling Methods 0.000 claims description 2
- 238000007689 inspection Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 description 10
- 239000010865 sewage Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 238000004887 air purification Methods 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical group O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/76—Gas phase processes, e.g. by using aerosols
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/261—Drying gases or vapours by adsorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/52—Hydrogen sulfide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/54—Nitrogen compounds
- B01D53/58—Ammonia
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/10—Oxidants
- B01D2251/104—Ozone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/90—Odorous compounds not provided for in groups B01D2257/00 - B01D2257/708
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/06—Polluted air
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
- B01D2259/804—UV light
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Dispersion Chemistry (AREA)
- Oxygen, Ozone, And Oxides In General (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
The invention discloses a kind of municipal drainage working space air cleaning unit and method, the purifier includes shell, shell is provided with air inlet and air outlet, air inlet pipe is connected with air inlet, hothouse, ozonator cell and gas output mechanism are provided with shell, dedusting mechanism is provided with air inlet；Drier is provided with hothouse, ozonator cell is including air chamber, installed in uviol lamp in air chamber and is arranged on the controller for being used to control uviol lamp to work on housing, and air chamber is connected with air inlet pipe；Conveying mechanism includes the blower fan and the conveyance conduit between blower fan and air outlet for being arranged on ozonator cell outlet；The detector for being used for detecting ozone concentration is provided with fan outlet, detector is connected with the controller, the ozone concentration that controller is shown according to detector controls the quantity of uviol lamp bright light.The present invention endlessly conveys micro- ozone by the system to municipal drainage working space, reaches that removing micro- pollution improves the purpose of room air.
Description
Technical field
The invention belongs to environmental technology field, and in particular to a kind of municipal drainage working space air cleaning unit and side
Method.
Background technology
With the progressively development of China's economy, the level of urbanization also more and more higher, various infrastructure have been obtained further
Ground is perfect.The important component that municipal water supply Drain pipe network works as the important infrastructure in city, it is to people's lives
Quality level has immeasurable influence, becomes one of urbanization important factor in order.City planting ductwork includes feedwater, row
The pipe-line systems such as water, supply and heating.Wherein sewerage system is processing and excludes the engineering of municipal sewage and rainwater and set
System is applied, is the part of urban public utilities.Sewerage system planning is the part of overall city planning.City
Drainage system is generally made up of drainage pipeline and sewage treatment plant.In the case where carrying out sewage, rainwater separate system, sewage is by arranging
Waterpipe is collected, and is delivered to after sewage disposal, is discharged into water body or recycling；Rainfall runoff is arranged nearby after drainage pipeline is collected
Enter water body.
In Municipal Drainage Engineering, works liquor pumping plant has many working spaces, though the malodor source in the space
Closed, negative-pressure ward disposal is so carried out.But the operating space that operating personnel's work comes in and goes out still suffers from offensive odour,
The smell hear for a long time suction can make one produce it is unhappy.This micro H2S that space diffuses, ammonia nitrogen, organic production taste agent smell,
The health of operator is influenced whether, how to be eliminated, the generation of foul odour is reduced, is an important work of municipal drainage cause
Make.
The content of the invention
In order to overcome the deficiencies in the prior art, it is an object of the invention to provide a kind of municipal drainage working space air is net
Makeup is put, and endlessly conveys micro- ozone to working space by the system, reaching improves the purpose of room air.
Another object of the present invention is to provide a kind of municipal drainage working space air purification method, it is by this method
Municipal drainage working space supplements a certain amount of oxygen and anion, reaches the purpose of better purifying space.
To solve the above problems, the technical solution adopted in the present invention is as follows：
Municipal drainage working space air cleaning unit, it includes shell, and the shell is provided with air inlet and air outlet, air inlet
It is connected with mouthful in air inlet pipe, shell and is provided with hothouse, ozonator cell and gas output mechanism, goes out to be provided with air inlet
Dedusting mechanism；Be provided with drier in the hothouse, the ozonator cell include air chamber, in air chamber uviol lamp with
And the controller for being used to control uviol lamp to work on housing is arranged on, the air chamber is connected with air inlet pipe；The conveying mechanism bag
Include the blower fan and the conveyance conduit between blower fan and air outlet for being arranged on ozonator cell outlet；It is provided with fan outlet
Detector for detecting ozone concentration, the detector is connected with the controller, the ozone that controller is shown according to detector
Concentration controls the quantity of uviol lamp bright light.
As further scheme, 3 groups of uviol lamps are set in ozonator cell of the present invention, opened during start-up operation
3 groups of uviol lamps, when ozone concentration reaches 0.1PPm, bright light number reduces 1 group, when ozone concentration is less than 0.1PPm, increases by 1 group
Bright light number.
As further scheme, dedusting structure of the present invention is the basket strainer for being arranged on hothouse porch.
As further scheme, uviol lamp of the present invention is the uviol lamp that wavelength is below 200nm.
As further scheme, blower fan of the present invention is axial flow blower.
As further scheme, the drier in hothouse of the present invention is regenerative absorption type dryer, regeneration
Inorganic dry particle and the asbestos heating wire for the inorganic dry particle of thermal regeneration are provided with absorption type dryer.
Municipal drainage working space air is purified using municipal drainage working space air cleaning unit of the present invention
Method, this method comprises the following steps：
1）Dedusting：Air into air inlet pipe municipal drainage working space passes through air inlet pipe in air is removed by dedusting structure
Particulate matter；
2）Dry：Air after dedusting is entered after hothouse and is dried by the drier in hothouse,
3）Produce ozone：Entered by dried air in ozonator cell, ozone is produced by the irradiation of uviol lamp, led to
Crossing the inlet of control air and the bright light quantity of uviol lamp makes O in air3Content reach 0.1-0.2mg/m3；
4）Containing ozone-air conveying：The mixed gas ozoniferous obtained in ozonator cell is defeated through conveyance conduit by blower fan
Deliver to after air outlet, enter pipe municipal drainage working space.
As further scheme, the drier employed in the above method is regenerative absorption type dryer, and the regeneration is inhaled
The drier that attached formula drier is used is heated for inorganic dry particle using asbestos heating wire to inorganic dry particle
Regeneration.
As further scheme, the drying temperature that drier of the present invention is set is 80-120 DEG C.
Relative to prior art, beneficial effects of the present invention are as follows：
1. municipal drainage working space air cleaning unit of the present invention is diffused into polluting work in a subtle way by forming ozone
Space, degraded is micro- to pollute organic and stepless odorous gas, supplements a certain amount of oxygen, reaches the purpose of better purifying space；
2. municipal drainage working space air cleaning unit of the present invention；Municipal drainage working space can effectively be purified
Air, protection operation employee health.
Below in conjunction with drawings and Examples, the invention will be further described.
Brief description of the drawings
Fig. 1 is municipal drainage working space air cleaning unit structural representation of the present invention；
Wherein, each reference is：1st, hothouse；11st, drier；2nd, ozonator cell；21st, air chamber；22nd, uviol lamp；3rd, remove
Dirt mechanism；4th, gas output mechanism.
Embodiment
As shown in figure 1, municipal drainage working space air cleaning unit of the present invention, it includes shell, described outer
Shell, which is provided with to be connected with air inlet pipe, shell on air inlet and air outlet, air inlet, is provided with hothouse 1, the and of ozonator cell 2
Gas output mechanism 4, goes out to be provided with dedusting mechanism 3 in air inlet；Drier 11, the ozone are provided with the hothouse 1
Occur room 2 including air chamber 21, installed in uviol lamp in air chamber 22 and be arranged on the control for being used to control uviol lamp to work on housing
Device processed（Do not show in figure）, the air chamber 21 is connected with air inlet pipe；The conveying mechanism 4 is exported including being arranged on ozonator cell 2
Blower fan and the conveyance conduit between blower fan and air outlet；The detection for being used for detecting ozone concentration is provided with fan outlet
Instrument, the detector is connected with the controller, and the ozone concentration that controller is shown according to detector controls the number of uviol lamp bright light
Amount.In the present invention, the impurity in air can be removed by filtering and drying, reduces air humidity, form clean dried empty
Gas；And micro foul smell is produced under the irradiation of uviol lamp by dried air in ozonator cell, can produce containing
0.1ppm foul smell+air, forms forest type concentration air.
As further scheme, 3 groups of uviol lamps are set in ozonator cell of the present invention, opened during start-up operation
3 groups of uviol lamps, when ozone concentration reaches 0.1PPm, bright light number reduces 1 group, when ozone concentration is less than 0.1PPm, increases by 1 group
Bright light number.The quantity of every group of uviol lamp could be arranged to 1-3.
As further scheme, dedusting structure of the present invention is the basket strainer 4 for being arranged on the porch of hothouse 1.
As further scheme, uviol lamp of the present invention is the uviol lamp that wavelength is below 200nm.
As further scheme, blower fan of the present invention is axial flow blower.Because axial flow blower has low noise
Feature can be by O3 +The pressurization of this forest type mixed gas of air is outer defeated, forest type air by the pipe-line system of reasonable Arrangement,
Diffuse into working space is polluted in a subtle way, degraded is micro- to pollute organic and stepless production taste gas, improves operating personnel healthy.
As further scheme, the drier 11 in hothouse 1 of the present invention is regenerative absorption type dryer, then
Inorganic dry particle and the asbestos heating wire for the inorganic dry particle of thermal regeneration are provided with raw absorption type dryer.
Another object of the present invention is to utilize municipal drainage working space air cleaning unit of the present invention purification
The method of municipal drainage working space air, this method comprises the following steps：
1）Dedusting：Air into air inlet pipe municipal drainage working space passes through air inlet pipe in air is removed by dedusting structure
Particulate matter；
2）Dry：Air after dedusting is entered after hothouse and is dried by the drier in hothouse,
3）Produce ozone：Entered by dried air in ozonator cell, ozone is produced by the irradiation of uviol lamp, led to
Crossing the inlet of control air and the bright light quantity of uviol lamp makes O in air3Content reach 0.1-0.2mg/m3；
4）Containing ozone-air conveying：The mixed gas ozoniferous obtained in ozonator cell is defeated through conveyance conduit by blower fan
Deliver to after air outlet, enter pipe municipal drainage working space.
As further scheme, the drier employed in the above method is regenerative absorption type dryer, and the regeneration is inhaled
The drier that attached formula drier is used is heated for inorganic dry particle using asbestos heating wire to inorganic dry particle
Regeneration.
Embodiment 1
The side of municipal drainage working space air is purified using municipal drainage working space air cleaning unit of the present invention
Method, this method comprises the following steps：
1）Dedusting：Air into air inlet pipe municipal drainage working space passes through air inlet pipe in air is removed by basket strainer
Particulate matter；
2）Dry：Air after dedusting is entered after hothouse and done by the regenerative absorption type dryer in hothouse
It is dry；Wherein drying temperature is 100 DEG C, and drier is aluminum oxide, and thermal regeneration is carried out to drier by asbestos heating wire；
3）Produce ozone：Entered by dried air in ozonator cell, ozone is produced by the irradiation of uviol lamp, led to
Crossing the inlet of control air and the bright light quantity of uviol lamp makes O in air3Content reach 0.1-0.2mg/m3；
4）Containing ozone-air conveying：The mixed gas ozoniferous obtained in ozonator cell is defeated through conveyance conduit by blower fan
Deliver to after air outlet, enter pipe municipal drainage working space.
Above-mentioned embodiment is only the preferred embodiment of the present invention, it is impossible to limit the scope of protection of the invention with this,
The change and replacement for any unsubstantiality that those skilled in the art is done on the basis of the present invention belong to institute of the present invention
Claimed scope.
Claims (9)
1. municipal drainage working space air cleaning unit, it is characterised in that it includes shell, the shell is provided with air inlet
And air outlet, it is connected with air inlet pipe, shell on air inlet and is provided with hothouse, ozonator cell and gas output mechanism,
Air inlet goes out to be provided with dedusting mechanism；Drier is provided with the hothouse, the ozonator cell includes air chamber, is arranged on
Uviol lamp and the controller for being used to control uviol lamp to work on housing is arranged in air chamber, the air chamber is connected with air inlet pipe；
The conveying mechanism includes the blower fan and the conveyance conduit between blower fan and air outlet for being arranged on ozonator cell outlet；
The detector for being used for detecting ozone concentration is provided with fan outlet, the detector is connected with the controller, and controller is according to inspection
Survey the quantity for the ozone concentration control uviol lamp bright light that instrument is shown.
2. municipal drainage working space air cleaning unit according to claim 1, it is characterised in that the ozone occurs
Indoor 3 groups of uviol lamps of setting, open 3 groups of uviol lamps during start-up operation, when ozone concentration reaches 0.1PPm, and bright light number reduces 1
Group, when ozone concentration is less than 0.1PPm, increases by 1 group of bright light number.
3. municipal drainage working space air cleaning unit according to claim 1, it is characterised in that the dedusting structure
To be arranged on the basket strainer of hothouse porch.
4. municipal drainage working space air cleaning unit according to claim 1, it is characterised in that the uviol lamp is
Wavelength is below 200nm uviol lamp.
5. municipal drainage working space air cleaning unit according to claim 1, it is characterised in that the blower fan is axle
Flow fan.
6. municipal drainage working space air cleaning unit according to claim 1, it is characterised in that in the hothouse
Drier be regenerative absorption type dryer, be provided with inorganic dry particle and for thermal regeneration in regenerative absorption type dryer
The asbestos heating wire of inorganic dry particle.
7. utilize the municipal drainage working space air cleaning unit purification municipal drainage working space air described in claim 1
Method, it is characterised in that this method comprises the following steps：
1）Dedusting：Air into air inlet pipe municipal drainage working space passes through air inlet pipe in air is removed by dedusting structure
Particulate matter；
2）Dry：Air after dedusting is entered after hothouse and is dried by the drier in hothouse,
3）Produce ozone：Entered by dried air in ozonator cell, ozone is produced by the irradiation of uviol lamp, led to
Crossing the inlet of control air and the bright light quantity of uviol lamp makes O in air3Content reach 0.1-0.2mg/m3；
4）Containing ozone-air conveying：The mixed gas ozoniferous obtained in ozonator cell is defeated through conveyance conduit by blower fan
Deliver to after air outlet, enter pipe municipal drainage working space.
8. method according to claim 7, it is characterised in that the drier is regenerative absorption type dryer, the regeneration
The drier that absorption type dryer is used is added for inorganic dry particle using asbestos heating wire to inorganic dry particle
Hot recycling.
9. method according to claim 7, it is characterised in that the drying temperature that the drier is set is 80-120 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710408742.1A CN107051150A (en) | 2017-06-02 | 2017-06-02 | Municipal drainage working space air cleaning unit and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710408742.1A CN107051150A (en) | 2017-06-02 | 2017-06-02 | Municipal drainage working space air cleaning unit and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107051150A true CN107051150A (en) | 2017-08-18 |
Family
ID=59615678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710408742.1A Pending CN107051150A (en) | 2017-06-02 | 2017-06-02 | Municipal drainage working space air cleaning unit and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107051150A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003089508A (en) * | 2001-09-17 | 2003-03-28 | Toshiba Corp | Ozone generation system |
| CN201433097Y (en) * | 2009-06-09 | 2010-03-31 | 天津市福康源科技发展有限公司 | Novel ozone machine |
| CN204593672U (en) * | 2015-01-27 | 2015-08-26 | 温州市骐邦环保科技有限公司 | Multifunctional air clarifying device |
| CN105197893A (en) * | 2015-09-23 | 2015-12-30 | 南京金仁环保科技有限公司 | Ozone generator for air source |
| CN205386402U (en) * | 2016-02-19 | 2016-07-20 | 深圳市天浩洋环保股份有限公司 | Ultraviolet ray degradation organic waste gas produces on -line control system of ozone concentration |
| CN207137664U (en) * | 2017-06-02 | 2018-03-27 | 深圳市利源水务设计咨询有限公司 | Municipal drainage working space air cleaning unit |
-
2017
- 2017-06-02 CN CN201710408742.1A patent/CN107051150A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003089508A (en) * | 2001-09-17 | 2003-03-28 | Toshiba Corp | Ozone generation system |
| CN201433097Y (en) * | 2009-06-09 | 2010-03-31 | 天津市福康源科技发展有限公司 | Novel ozone machine |
| CN204593672U (en) * | 2015-01-27 | 2015-08-26 | 温州市骐邦环保科技有限公司 | Multifunctional air clarifying device |
| CN105197893A (en) * | 2015-09-23 | 2015-12-30 | 南京金仁环保科技有限公司 | Ozone generator for air source |
| CN205386402U (en) * | 2016-02-19 | 2016-07-20 | 深圳市天浩洋环保股份有限公司 | Ultraviolet ray degradation organic waste gas produces on -line control system of ozone concentration |
| CN207137664U (en) * | 2017-06-02 | 2018-03-27 | 深圳市利源水务设计咨询有限公司 | Municipal drainage working space air cleaning unit |
Non-Patent Citations (1)
| Title |
|---|
| 徐玉党等: "《室内污染控制与洁净技术》", 30 September 2006, 重庆大学出版社 * |
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Application publication date: 20170818 |