Pressure limit switch circuit is cut off, stop, and then closing, the hook can only decrease.

压下限位开关，切断电路停车，再合闸时，吊钩只能下降。

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The ignition switch allows the driver to start and stop ignition by opening and closing the circuit between the electrical engry source and the other ignition components.

驾驶员可通过开关电动源和点火元件之间的电路来开始启动和熄火。

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The burn of circuit breaker closing coils and contactors is a common problem in the switchyard operates.

断路器控制回路的合闸线圈和接触器烧毁现象是变电运行工作中经常遇到的普遍问题。

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Shares of Pandora dropped nearly 20% shortly before the closing bell, after tripping two circuit breakers in 10 minutes.

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"That's why Circuit City and Radio Shack are closing so many stores, " Davidowitz says.

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