Mechanical switching device capable of making, carrying and breaking currents in normal circuit conditions and, when specified, in given operating overload conditions.

能接通、承载和分断正常电路条件下的电流，也能在规定的非正常条件（例如短路条件）下接通、承载一定时间和分断电流的一种机械开关电器。

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The reliability index and mechanical environment resistance index of switching electrical apparatus used in aerospace system are gradually upgraded.

执行航空、航天任务的开关电器的可靠性指标与耐力学环境指标正逐步提高。

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The hydraulic electro generating says income kind of significance is the water potential energy turns the mechanical energy, also turns the electrical energy the switching process.

水力发电在某种意义上讲是水的势能变成机械能，又变成电能的转换过程。

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Aspiring to become a successful tech business CEO, she is switching from chemical and mechanical engineering to computer science.

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It is easy for parking software to control because it involves switching electric motors on and off, rather than operating mechanical pumps.

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The mechanical prototype shown today is the next evolution of rack disaggregation with separate distributed switching functions.

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