Annual check, clean and tighten all electrical connector.

每年检查、清理并拧紧所有的电气接头。

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Check the water pipe connector about leakage status in every shift.

每个班次检查水管接头看是否有漏水现象。

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Check system alignment - end connector (s) must be parallel.

检查系统是否对准-端口连接件必须平行。

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Check system alignment - end connector (s) must be parallel.

检查系统是否对准-端口连接件必须平行。

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