天天修漏电，今换个口味，修台设备，电机正反不转换。。【城阳电工电路】

Factory equipment buzzing some investigation found out the reason everyone collective laughter di

The forward rotation of the motor is strong and the reverse rotation is occasionally boring. The ma

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The ground wire of the socket was electrified and the last master cut it off directly. As a result

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The equipment was buzzing and the electrician was asked to check the reason and see the result. He

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被上个电工师傅坑了，虽然是个小故障，但还是存在安全隐患！【城阳电工电路】

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早知道這些 WD-40 妙用就好了，可以省下不少時間

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The project is about to be accepted and there is a trip problem? If you can't find the cause of th

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The new elevator runs normally during the day but automatically strikes at night. The reason is su

你见过线管进水的，进胶的，你见过线管会吐泡泡的吗？