CN110259809A - It is a kind of to determine torque pressure attachment means - Google Patents

It is a kind of to determine torque pressure attachment means Download PDF

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Publication number
CN110259809A
CN110259809A CN201910691371.1A CN201910691371A CN110259809A CN 110259809 A CN110259809 A CN 110259809A CN 201910691371 A CN201910691371 A CN 201910691371A CN 110259809 A CN110259809 A CN 110259809A
Authority
CN
China
Prior art keywords
swivel nut
nut
attachment means
determine torque
air pressure
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
Application number
CN201910691371.1A
Other languages
Chinese (zh)
Inventor
杨再登
陈瑞斌
古亚军
崔晨阳
赵超鹏
赵磊成
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Henan Four Power Technology Research Institute Co Ltd
Henan Four Reaches Power Equipment Ltd Co
Original Assignee
Henan Four Power Technology Research Institute Co Ltd
Henan Four Reaches Power Equipment Ltd Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Henan Four Power Technology Research Institute Co Ltd, Henan Four Reaches Power Equipment Ltd Co filed Critical Henan Four Power Technology Research Institute Co Ltd
Priority to CN201910691371.1A priority Critical patent/CN110259809A/en
Publication of CN110259809A publication Critical patent/CN110259809A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B39/00Locking of screws, bolts or nuts
    • F16B39/22Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B39/00Locking of screws, bolts or nuts
    • F16B39/22Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
    • F16B39/24Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by means of washers, spring washers, or resilient plates that lock against the object

Abstract

It is provided by the invention a kind of to determine torque pressure attachment means, solving the problems, such as to construct because of worker lack of standardization causes clamp device to be crossed to send or tension, it is easy to fall off if pine, the problem of being easy to produce crackle inside it if tight, and the present invention can make clamp device continue to keep good pressure, to guarantee that it can fasten the longer time, maintenance number can suitably be reduced, maintenance conduction wire clamp belongs to altitude hot-line operation, it is not only difficult that there are also very big danger, its solve technical solution be, including screw, the swivel nut being screwed on screw, swivel nut has been screwed on the screw above swivel nut, external screw thread is equipped on swivel nut top, thread cap has been screwed on external screw thread, internal pressure device is placed in swivel nut between thread cap and screw, different internal pressure devices can be used in different situations to adapt to not With environment need, structure of the invention is ingenious to be not only simple in structure and practical.

Description

It is a kind of to determine torque pressure attachment means
Technical field
The present invention relates to a kind of pressure fasteners, especially a kind of to determine torque pressure attachment means.
Background technique
Conventional pressure fastener, due to belonging to, high altitude operation is easier than relatively hazardous and worker operation not to be advised when in use Model during installation can not accurately control fastener pressure to some numerical value, and pine, which will lead to, to be easy to fall off, can tightly generate very much in Portion's crackle reduces the service life, and so as to cause route, there are security risks, and route handles wind rain due to exposing in the sky Beat will lead to electric wire generation wave, vibrate, connecting portion can be easily broken off or fall off.
Summary of the invention
Torque pressure fastener dress is determined the present invention provides a kind of for above situation for the defect for overcoming the prior art Set, not only solve because operate it is lack of standardization cause fastener to be unscrewed if be easy to loosen and twist too compact interior and be easy to produce crackle Problem also solves the pressure of stable for extended periods of time, loosen fixture will not in vibration.
Its technical solution solved is, including bolt, nut, which is characterized in that further includes swivel nut, threaded cap, inside pressure Power device;
The nut is screwed on bolt, has screwed swivel nut on the screw rod of nut upper end, on swivel nut on the outer surface of part Equipped with external screw thread, threaded cap is screwed on the external screw thread of swivel nut upper end, is placed in the swivel nut between threaded cap and screw rod interior Portion's pressure apparatus, the internal pressure device apply upward power after threaded cap is tightened to threaded cap, apply to bolt downward Power.
Preferably, the internal pressure device is elastomeric element.
Preferably, the internal pressure device is the first spring.
Preferably, first both ends of the spring is equipped with upper stop piece and lower stop piece.
Preferably, upper stop piece extends downwardly the guide rod being placed in the first spring, lower lever is extended with and leads upwards The guide sleeve being slidingly fitted to bar.
Preferably, the internal pressure device is covered by upper air pressure and lower air pressure covers and in upper air pressure set and lower air pressure set It constitutes, is slidingly sealed cooperation between upper air pressure set and lower air pressure set.
Preferably, being connected with second spring between the upper air pressure set and lower air pressure set.
Preferably, the port on the cylinder top is closed it is characterized in that, the internal pressure device is cylinder.
Preferably, the internal pressure device stretches out swivel nut in off position the upper end upwards, the threaded cap by The capping of nut and nut upper end is constituted.
Preferably, the internal pressure device is placed in swivel nut in off position the upper end, the threaded cap is by spiral shell The block extended downwardly that female, nut upper end capping and capping lower end are fixed is constituted.
The medicine have the advantages that not only solving can continue to provide power to fasten locating piece after mounting, and will not It is loosened because of vibration, and provides on pressure apparatus according to a variety of internal pressure devices of different situations offer and adapt to Different situations, and since internal pressure device is positioned using persistently pressure is applied to its connecting portion screw thread, so can To keep to loosen for a long time, it can be reduced maintenance number in the staff of high altitude operation, alleviate labor intensity.
Detailed description of the invention
Fig. 1 is overall schematic of the present invention.
Fig. 2 is main view of the present invention.
Fig. 3 is cross-sectional view of the present invention.
Fig. 4 is spring inner pressure apparatus of the present invention.
Fig. 5 is spring inner pressure apparatus cross-sectional view of the present invention.
Fig. 6 is air pressure internal pressure device of the present invention.
Fig. 7 is air pressure internal pressure device cross-sectional view of the present invention.
Fig. 8 is internal cylinder pressure device of the present invention.
Fig. 9 is internal cylinder pressure device cross-sectional view of the present invention.
Figure 10 is nut schematic diagram of the present invention.
Figure 11 is the structure chart when present invention specifically installs.
Appended drawing reference
1. bolt, 2. nuts, 3. swivel nuts, 4. threaded caps, 5. internal pressure devices, 6. first springs, 7. second springs are kept off on 8. Piece, 9. lower stop pieces, 10. guide rods, 11. guide sleeves, air pressure set on 12., 13. lower air pressure sets, 14. cylinders, 15. nuts, 16. envelopes Lid, 17. blocks, 18. strain clamp drainage plates.
Specific embodiment
Further description is made to a specific embodiment of the invention below in conjunction with attached drawing 1-11.
Embodiment one, the technical solution solved is, including bolt 1, nut 2, which is characterized in that further include swivel nut 3, spiral shell Line lid 4, internal pressure device 5;
The nut 2 is screwed on bolt 1, and swivel nut 3 has been screwed on the screw rod of 2 upper end of nut, the appearance of part on swivel nut 3 Face is equipped with external screw thread, and threaded cap 4 is screwed on the external screw thread of 3 upper end of swivel nut, in the swivel nut 3 between threaded cap 4 and screw rod It is placed with internal pressure device 5, the internal pressure device 5 applies upward power after threaded cap 4 is tightened to threaded cap 4, right Bolt 1 applies downward power.The embodiment when in use, will first be covered on screw, the screw above fastener by fastener On screw nut 2, screw swivel nut 3 on the screw above nut 2, screw upper end be located in swivel nut 3 place internal pressure dress 5 are set, threaded cap 4 is screwed at the external screw thread on 3 top of swivel nut, tightens threaded cap 4, internal pressure device 5 is in own resilient Apply downward power under effect to screw, applies upward power, screw connection point, the swivel nut 3 of screw and swivel nut 3 to thread cap Screw connection point with threaded cap 4 is because the pressure stress that internal pressure device 5 applies increases to be held in position.
Compared to conventional nut, since conventional nut can be led when positioning elastic part (e.g. strain clamp drainage plate) Cause elastic component deformation, unscrew and will lead to loose phenomenon, best torque can not be provided, or can not according to unified torque standard into Row, because if will lead to elastic component deformation if unified torque standard is excessive.The pressure fastener device that the invention provides It is to loosen to conventional nut, prevents conventional nut from retracting, when turning thread cap is transmitted the force to by spring On the bolt and nut of lower part, the elastic component for needing to fasten at this time not by this pressure, therefore the invention use when can so that Elastic fastener is unlikely to deform, and it can be made to fix fastening and be not easy to loosen, and since torque can be set as needed, because This can make standard torque, be fastened according to standard to swivel nut by torque spanner.
Embodiment two, on the basis of example 1, the internal pressure device 5 are elastomeric element.The embodiment makes Used time, swivel nut 3 is interior and side applies all objects of certain force up and down including that can be placed on for internal pressure device 5.
Embodiment three, on the basis of example 1, the internal pressure device 5 are the first spring 6.The embodiment makes Used time, internal pressure device 5 can be located in the first spring 6 in swivel nut 3, and the size of spring force is according to circumstances selected It selects.
Example IV, on the basis of embodiment three, 6 both ends of the first spring are equipped with upper stop piece 8 and lower stop piece 9.It should Embodiment when in use, when internal pressure apparatus 5 is spring, is provided with baffle, baffle in the upper surface of spring and lower end surface Touching screw upper end and emitting inner surface with screw thread makes to be more uniformly stressed.
Embodiment five, on the basis of example IV, upper stop piece 8 extends downwardly the guide rod being placed in the first spring 6 10, lower lever is extended with the guide sleeve 11 being slidingly fitted with guide rod 10 upwards.The embodiment when in use, in spring upper end 8 spring of upper stop piece in part extended downwardly guide rod 10, the part in 9 spring of lower stop piece of lower spring end is stretched upwards There is guide sleeve 11 out, be slidably matched between guide sleeve 11 and guide rod 10, play the guiding role during spring-compressed, prevent bullet Spring friction 3 inner wall of swivel nut.
Embodiment six, on the basis of example 1, the internal pressure device 5 is by upper air pressure set 12 and lower air pressure set 13 And constituted in upper air pressure set 12 and lower air pressure set 13, cooperation is slidingly sealed between upper air pressure set 12 and lower air pressure set 13.The reality Example is applied when in use, during tightening thread cap, due to being slidingly sealed cooperation, upper air pressure set 12 between upper and lower air pressure set 13 Air between lower air pressure set 13 is compressed, and rear air pressure is twisted and pushes 13 separation of upper and lower air pressure set, under the action of atmospheric pressure It is downwardly applied to power upwards, keeps the screw connection point, swivel nut 3 and the screw connection point of threaded cap 4 of screw and swivel nut 3 equal because in The pressure stress that portion's pressure apparatus 5 applies increases to be held in position.
Embodiment seven is connected with second between the upper air pressure set 12 and lower air pressure set 13 on the basis of embodiment six Spring 7.The embodiment when in use, is provided with second spring 7 between upper and lower air pressure set 13, applies more to upper and lower air pressure set 13 Big power, suitable for being used in the case where simple air pressure is insufficient for motive force.
Embodiment eight, on the basis of example 1, which is characterized in that the internal pressure device 5 is cylinder 14, described The port on 14 top of cylinder is closed.When in use, internal pressure device 5 may be cylinder 14 to the embodiment, in cylinder 14 Upper end is provided with even open to atmosphere through-hole, prevents from compressing upper partial air when moving upwards.
Embodiment nine, on the basis of embodiment one to eight, the internal pressure device 5 off position the upper end to Upper stretching swivel nut 3, the threaded cap 4 are made of the capping 16 of 15 upper end of nut 15 and nut.The embodiment when in use, not The original state installed its internal pressure device 5 its press member long time treatment stress in order to prevent, so Pressure piece should be kept to be in the state that do not stress when not installed.
Embodiment ten, on the basis of embodiment one to eight, the internal pressure device 5 is set in off position the upper end In in swivel nut 3, the threaded cap 4 is by nut 15, the capping 16 of 15 upper end of nut and capping 16 lower ends are fixed extends downwardly Block 17 is constituted.The embodiment when in use, in non-installation process, to prevent internal pressure device 5 from shaking in swivel nut 3, Thread cap is screwed on the screw thread on 3 top of swivel nut, thread cap has the block 17 extended down into swivel nut 3.

Claims (10)

1. a kind of determine torque pressure attachment means, including bolt (1), nut (2), which is characterized in that it further include swivel nut (3), Threaded cap (4), internal pressure device (5);
The nut (2) is screwed on bolt (1), and swivel nut (3) have been screwed on the screw rod of nut (2) upper end, on swivel nut (3) Partial outer surface is equipped with external screw thread, and threaded cap (4) is screwed on the external screw thread of swivel nut (3) upper end, in threaded cap (4) and spiral shell It is placed with internal pressure device (5) in swivel nut (3) between bar, the internal pressure device (5) is right after threaded cap (4) is tightened Threaded cap (4) applies upward power, applies downward power to bolt (1).
2. a kind of according to claim 1 determine torque pressure attachment means, which is characterized in that the internal pressure device It (5) is elastomeric element.
3. a kind of according to claim 1 determine torque pressure attachment means, which is characterized in that the internal pressure device (5) it is the first spring (6).
4. a kind of according to claim 3 determine torque pressure attachment means, which is characterized in that first spring (6) two End is equipped with upper stop piece (8) and lower stop piece (9).
5. a kind of according to claim 4 determine torque pressure attachment means, which is characterized in that upper stop piece (8) extends downwardly There is the guide rod (10) being placed in the first spring (6), lower lever is extended with the guiding being slidingly fitted with guide rod (10) upwards It covers (11).
6. a kind of according to claim 1 determine torque pressure attachment means, which is characterized in that the internal pressure device (5) it is constituted by upper air pressure set (12) and lower air pressure set (13) and in upper air pressure set (12) and lower air pressure set (13), upper air pressure set (12) cooperation is slidingly sealed between lower air pressure set (13).
7. a kind of according to claim 6 determine torque pressure attachment means, which is characterized in that the upper air pressure set (12) and Second spring (7) are connected between lower air pressure set (13).
8. a kind of according to claim 1 determine torque pressure attachment means, which is characterized in that it is characterized in that, in described Portion's pressure apparatus (5) is cylinder (14), and the port on cylinder (14) top is closed.
9. -8 any described a kind of determine torque pressure attachment means according to claim 1, which is characterized in that described internal to press Power device (5) stretches out swivel nut (3) upwards in off position the upper end, and the threaded cap (4) is by nut (15) and nut (15) The capping (16) of upper end is constituted.
10. -8 any described a kind of determine torque pressure attachment means according to claim 1, which is characterized in that the inside Pressure apparatus (5) is placed in swivel nut (3) in off position the upper end, and the threaded cap (4) is by nut (15), nut (15) The block (17) extended downwardly that the capping (16) at end and capping (16) lower end are fixed is constituted.
CN201910691371.1A 2019-07-29 2019-07-29 It is a kind of to determine torque pressure attachment means Pending CN110259809A (en)

Priority Applications (1)

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CN201910691371.1A CN110259809A (en) 2019-07-29 2019-07-29 It is a kind of to determine torque pressure attachment means

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Application Number Priority Date Filing Date Title
CN201910691371.1A CN110259809A (en) 2019-07-29 2019-07-29 It is a kind of to determine torque pressure attachment means

Publications (1)

Publication Number Publication Date
CN110259809A true CN110259809A (en) 2019-09-20

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Citations (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH204318A (en) * 1938-08-12 1939-04-30 Julius Dipl Ing Jonas Helical spring designed to secure the nut.
US6139113A (en) * 1996-07-08 2000-10-31 Seliga; Lynne M. Vehicle rim assembly
CN201547106U (en) * 2009-11-11 2010-08-11 沈阳黎明航空发动机(集团)有限责任公司 Fixed-moment nut
US20100247266A1 (en) * 2009-03-25 2010-09-30 Tadeusz Staniszewski Self-locking nut
WO2011111087A1 (en) * 2010-03-08 2011-09-15 Taneichi Kaoru Force applying device
CN202212901U (en) * 2011-08-02 2012-05-09 上海航天设备制造总厂 Initial force debugging wrench for release rod
CN202391913U (en) * 2011-12-12 2012-08-22 长葛市电力工业公司 Preset pressure bolt
CN202991774U (en) * 2012-11-27 2013-06-12 海通能源集团有限公司 Sleeve-type spring screw
CN103398055A (en) * 2013-08-08 2013-11-20 贵州航天精工制造有限公司 Anti-shearing-type quick adjustment threaded connection assembly and connection method thereof
CN103644190A (en) * 2013-12-26 2014-03-19 霍永久 Anti-loose and anti-theft nut
CN103697041A (en) * 2013-12-27 2014-04-02 中国第一汽车股份有限公司 Fastening bolt assembly with spring
CN104002278A (en) * 2014-06-18 2014-08-27 电子科技大学 Bolt screwing device
CN203926761U (en) * 2014-07-10 2014-11-05 宁波市天基隆智控技术有限公司 A kind of for lining plate of coal grinder bolt seal assembly
CN204419822U (en) * 2015-01-09 2015-06-24 刘兴丹 A kind of sleeve bullet card bolt
CN204458770U (en) * 2015-02-07 2015-07-08 宁波经济技术开发区甬港紧固件有限公司 The clamping bolt that anti-loosing effect is good
CN105937538A (en) * 2016-05-20 2016-09-14 李武彬 Structure of locknut and locking adjusting method for locknut
CN106151232A (en) * 2016-09-19 2016-11-23 浙江亦宸五金有限公司 A kind of sealing bolt connecting fastening
JP2016211649A (en) * 2015-05-08 2016-12-15 濱中ナット株式会社 Sag preventive structure for bolt or nut, and bolt for the same
CN106640915A (en) * 2017-02-07 2017-05-10 博罗县何氏模具制造有限公司 Anti-loosening structure for press bar chock plug additionally-arranged thread sleeve
KR101787534B1 (en) * 2016-08-08 2017-10-19 주식회사 티에프이 Ball plunger of stroke expanding type
CN107654473A (en) * 2017-10-27 2018-02-02 杨聪辉 A kind of locking dirt-proof boot and dust-proof nut assembly
CN108361266A (en) * 2018-04-25 2018-08-03 何长青 A kind of double nut and spring washer combined type anti-loosing fixing device
CN109915464A (en) * 2019-02-15 2019-06-21 海益(厦门)建材工业有限公司 A kind of fast disassembly type determines torque nut component
CN109915456A (en) * 2019-02-15 2019-06-21 海益(厦门)建材工业有限公司 It is a kind of to determine torque nut component
CN210265456U (en) * 2019-07-29 2020-04-07 河南四达电力设备股份有限公司 Fixed torque pressure fastener device

Patent Citations (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH204318A (en) * 1938-08-12 1939-04-30 Julius Dipl Ing Jonas Helical spring designed to secure the nut.
US6139113A (en) * 1996-07-08 2000-10-31 Seliga; Lynne M. Vehicle rim assembly
US20100247266A1 (en) * 2009-03-25 2010-09-30 Tadeusz Staniszewski Self-locking nut
CN201547106U (en) * 2009-11-11 2010-08-11 沈阳黎明航空发动机(集团)有限责任公司 Fixed-moment nut
WO2011111087A1 (en) * 2010-03-08 2011-09-15 Taneichi Kaoru Force applying device
CN202212901U (en) * 2011-08-02 2012-05-09 上海航天设备制造总厂 Initial force debugging wrench for release rod
CN202391913U (en) * 2011-12-12 2012-08-22 长葛市电力工业公司 Preset pressure bolt
CN202991774U (en) * 2012-11-27 2013-06-12 海通能源集团有限公司 Sleeve-type spring screw
CN103398055A (en) * 2013-08-08 2013-11-20 贵州航天精工制造有限公司 Anti-shearing-type quick adjustment threaded connection assembly and connection method thereof
CN103644190A (en) * 2013-12-26 2014-03-19 霍永久 Anti-loose and anti-theft nut
CN103697041A (en) * 2013-12-27 2014-04-02 中国第一汽车股份有限公司 Fastening bolt assembly with spring
CN104002278A (en) * 2014-06-18 2014-08-27 电子科技大学 Bolt screwing device
CN203926761U (en) * 2014-07-10 2014-11-05 宁波市天基隆智控技术有限公司 A kind of for lining plate of coal grinder bolt seal assembly
CN204419822U (en) * 2015-01-09 2015-06-24 刘兴丹 A kind of sleeve bullet card bolt
CN204458770U (en) * 2015-02-07 2015-07-08 宁波经济技术开发区甬港紧固件有限公司 The clamping bolt that anti-loosing effect is good
JP2016211649A (en) * 2015-05-08 2016-12-15 濱中ナット株式会社 Sag preventive structure for bolt or nut, and bolt for the same
CN105937538A (en) * 2016-05-20 2016-09-14 李武彬 Structure of locknut and locking adjusting method for locknut
KR101787534B1 (en) * 2016-08-08 2017-10-19 주식회사 티에프이 Ball plunger of stroke expanding type
CN106151232A (en) * 2016-09-19 2016-11-23 浙江亦宸五金有限公司 A kind of sealing bolt connecting fastening
CN106640915A (en) * 2017-02-07 2017-05-10 博罗县何氏模具制造有限公司 Anti-loosening structure for press bar chock plug additionally-arranged thread sleeve
CN107654473A (en) * 2017-10-27 2018-02-02 杨聪辉 A kind of locking dirt-proof boot and dust-proof nut assembly
CN108361266A (en) * 2018-04-25 2018-08-03 何长青 A kind of double nut and spring washer combined type anti-loosing fixing device
CN109915464A (en) * 2019-02-15 2019-06-21 海益(厦门)建材工业有限公司 A kind of fast disassembly type determines torque nut component
CN109915456A (en) * 2019-02-15 2019-06-21 海益(厦门)建材工业有限公司 It is a kind of to determine torque nut component
CN210265456U (en) * 2019-07-29 2020-04-07 河南四达电力设备股份有限公司 Fixed torque pressure fastener device

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
杨成: "螺栓紧固力矩应用浅析", 《化工管理》, no. 18, 31 December 2017 (2017-12-31), pages 249 *
胡旭: "《机械设计原理及其工程实践研究》", 31 May 2019, 中国原子能出版社, pages: 184 *
韩星: "《汽车车身修复技术》", 31 August 2009, 冶金工业出版社, pages: 25 *

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