CN112848761B - 一种数学模型演示教具 - Google Patents
一种数学模型演示教具 Download PDFInfo
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- CN112848761B CN112848761B CN202110045204.7A CN202110045204A CN112848761B CN 112848761 B CN112848761 B CN 112848761B CN 202110045204 A CN202110045204 A CN 202110045204A CN 112848761 B CN112848761 B CN 112848761B
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- 238000013178 mathematical model Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 15
- 238000004140 cleaning Methods 0.000 claims description 22
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- 238000007906 compression Methods 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 239000000243 solution Substances 0.000 claims description 13
- 241000252254 Catostomidae Species 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 10
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 240000007643 Phytolacca americana Species 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 7
- 238000001179 sorption measurement Methods 0.000 description 4
- 238000000605 extraction Methods 0.000 description 3
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- 238000009434 installation Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L11/00—Non-circular-curve-drawing instruments
- B43L11/02—Non-circular-curve-drawing instruments for drawing conic sections
- B43L11/04—Non-circular-curve-drawing instruments for drawing conic sections for drawing ellipses
- B43L11/043—Non-circular-curve-drawing instruments for drawing conic sections for drawing ellipses with stencils
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L12/00—Means to prevent slippage
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L21/00—Blackboard or slate cleaning devices
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CN202110045204.7A CN112848761B (zh) | 2021-01-14 | 2021-01-14 | 一种数学模型演示教具 |
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CN202110045204.7A CN112848761B (zh) | 2021-01-14 | 2021-01-14 | 一种数学模型演示教具 |
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CN112848761A CN112848761A (zh) | 2021-05-28 |
CN112848761B true CN112848761B (zh) | 2022-06-28 |
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3506528A1 (de) * | 1985-02-25 | 1986-08-28 | Heinrich 8500 Nürnberg Martin | Geraet zur darstellung der drehung von flaechenstuecken oder koerpern |
CN204820778U (zh) * | 2015-06-30 | 2015-12-02 | 朱继勇 | 皮带旋转式自擦黑板 |
CN109228738A (zh) * | 2018-12-08 | 2019-01-18 | 河南云投小镇创业孵化器有限公司 | 一种企业管理教学展示板 |
CN211207699U (zh) * | 2020-01-14 | 2020-08-07 | 魏忠莉 | 一种高等数学教学用演示装置 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1005426A (en) * | 1962-08-23 | 1965-09-22 | Hans Hille | Adjustable template for drawing ellipses |
CN204990885U (zh) * | 2015-07-28 | 2016-01-20 | 临沂大学 | 一种大学数学旋转曲面演示教具 |
CN210324777U (zh) * | 2019-04-22 | 2020-04-14 | 李彤霞 | 一种数学教学用旋转演示装置 |
CN109979287B (zh) * | 2019-05-17 | 2021-02-02 | 安徽理工大学 | 一种高等数学教学用摆线演示教具 |
CN212084500U (zh) * | 2020-04-28 | 2020-12-04 | 王卓 | 一种机械设计课堂演示教具 |
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2021
- 2021-01-14 CN CN202110045204.7A patent/CN112848761B/zh active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3506528A1 (de) * | 1985-02-25 | 1986-08-28 | Heinrich 8500 Nürnberg Martin | Geraet zur darstellung der drehung von flaechenstuecken oder koerpern |
CN204820778U (zh) * | 2015-06-30 | 2015-12-02 | 朱继勇 | 皮带旋转式自擦黑板 |
CN109228738A (zh) * | 2018-12-08 | 2019-01-18 | 河南云投小镇创业孵化器有限公司 | 一种企业管理教学展示板 |
CN211207699U (zh) * | 2020-01-14 | 2020-08-07 | 魏忠莉 | 一种高等数学教学用演示装置 |
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Application publication date: 20210528 Assignee: Yuyi (Shenyang) Digital Technology Development Co.,Ltd. Assignor: Hunan University of Humanities, Science and Technology Contract record no.: X2023980045800 Denomination of invention: A Mathematical Model Demonstration Teaching Aid Granted publication date: 20220628 License type: Common License Record date: 20231106 Application publication date: 20210528 Assignee: Hubei kunpengxin Technology Co.,Ltd. Assignor: Hunan University of Humanities, Science and Technology Contract record no.: X2023420000309 Denomination of invention: A Mathematical Model Demonstration Teaching Aid Granted publication date: 20220628 License type: Common License Record date: 20231108 |
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