The breaker switch for any electric equipment should be locked and tagged out before conducting any repairs.

在维修任何电器之前，都应当先把开关锁住，并做上标志。

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The breaker switch for any electric equipment should be locked and tagged out before conducting any repairs.

在维修任何电器之前，都应当先把开关锁住，并做上标志。

youdao