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translation, rotation, vibration （生物或者化学好一点的来）分子的三种motion,rotation是旋转, vibration是震动.translation要怎么翻译?不要说是“翻译”最好能举个例子.什么样子的motion是translation?谢谢
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transition,or translation, 指的是平动.平动应该不用再赘述了吧,指的是质点的平移,位置的改变.平动(translation),转动(rotation),振动(vibration),是分子涉及的motions. 原子的话,就只有平动,没有振动跟转动.
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扫描下载二维码What is trip unit (circuit breaker)? - Definition
trip unit (circuit breaker)
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ICMP (Internet Control Message Protocol) is an error-reporting and message-control protocol that network devices use to report problems in IP packet delivery.
A trip unit is the part of a circuit breaker that opens the circuit in the event of a thermal overload, short circuit or ground fault. &An open circuit will not conduct electricity because either air, or some other insulator has stopped or broken the flow of current in the loop.
There are two types of trip units, electromechanical (also called thermal magnetic) and electronic.&& An electromechanical trip u it combines a current-sensitive electromechanical device with a thermal-sensitive device and the two devices work together to determine when to &mechanically open the circuit. An electronic trip unit is programmable device which measures and times current flowing through the circuit breaker and initiates a trip signal when appropriate.
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