Manual and electrical operation, can perform auto control together with auto fire alarm system.

有手动和电动操作，与火灾自动报警系统联动，可实现自动控制。

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The transformer is mainly used for power transmission and distribution and voltage transformation, is one of the important equipment of electrical operation.

变压器主要用于电能的传输、分配和电压的变换，是电气运行中的重要设备之一。

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I don't know if you know how a spark plug works, but for the electrical current to fly into operation in a spark plug, the two points of contact have to be gapped.

我不知道你们是否知道,火花塞是怎样工作的，在电流通入火花塞中使它运转之前，两个接触点之间需要有空隙。

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Of course, in 1859 there were few electrical devices in operation, the telegraph being the most notable.

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In 1885, the first commercially operated electrical streetcar began operation in Baltimore.

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The TDI engine charges the battery while driving in order to store enough electrical energy for EV operation later in the journey-for instance, in an urban area.

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