a branch of electronics that deals with the design and manufacture of extremely small electronic components and circuits, typically using semiconductor materials such as silicon
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微电子学
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an electronic device that uses a small electrical current to control a larger current, acting like an automatic switch
![继电器](https://api.langeek.co/v1/assets/flags/zh.png)
继电器
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a type of rolling-element bearing that uses balls to maintain the separation between the bearing races, reducing friction and enabling smooth rotation
![球轴承, 滚珠轴承](https://api.langeek.co/v1/assets/flags/zh.png)
球轴承, 滚珠轴承
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a mechanical transmission system using a flexible belt to transfer power between rotating shafts
![皮带传动, 传动带系统](https://api.langeek.co/v1/assets/flags/zh.png)
皮带传动, 传动带系统
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an environment that can be used to verify the correctness of a model or design
![测试台, 测试平台](https://api.langeek.co/v1/assets/flags/zh.png)
测试台, 测试平台
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a wheel with a set of square or triangular teeth sticking out around the edge that fits into the edge of a similar wheel, causing both wheels to turn
![齿轮, 轮齿](https://api.langeek.co/v1/assets/flags/zh.png)
齿轮, 轮齿
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a device that allows movement between mechanical parts of a machine or converts backward and forward motion into circular movement
![曲柄, 摇柄](https://api.langeek.co/v1/assets/flags/zh.png)
曲柄, 摇柄
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a mechanical component that transmits rotational power from the engine to the wheels or other driven components of a vehicle or machine
![驱动轴, 传动轴](https://api.langeek.co/v1/assets/flags/zh.png)
驱动轴, 传动轴
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gears, toothed wheels, or mechanical components designed to transmit and control power between rotating shafts in a machine, vehicle, or system
![齿轮, 传动系统](https://api.langeek.co/v1/assets/flags/zh.png)
齿轮, 传动系统
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a thorough inspection and repair of a machine or system to improve its performance or extend its lifespan
![检修, 翻新](https://api.langeek.co/v1/assets/flags/zh.png)
检修, 翻新
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a permanent fastener with a head on one end and a deformable shaft that forms a second head when joining materials together
![铆钉](https://api.langeek.co/v1/assets/flags/zh.png)
铆钉
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a toothed wheel with projections that mesh with a chain, track, or other perforated or indented material, typically used to transmit motion or power in machinery, vehicles, or bicycles
![链轮, 齿轮](https://api.langeek.co/v1/assets/flags/zh.png)
链轮, 齿轮
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a machine tool that rotates a workpiece so one can shape it by cutting, sanding, or drilling
![车床, 旋转工具](https://api.langeek.co/v1/assets/flags/zh.png)
车床, 旋转工具
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the branch of technology and industry concerned with both aviation and space flight
![航空航天, 航空宇宙](https://api.langeek.co/v1/assets/flags/zh.png)
航空航天, 航空宇宙
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a professional who uses specialized software to create detailed drawings and plans for buildings, machines, or products
![计算机辅助设计技术员, CAD技术员](https://api.langeek.co/v1/assets/flags/zh.png)
计算机辅助设计技术员, CAD技术员
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