It is important to check that all mechanical and electric parts of the machine function normally so as to prevent machine damage and personal injury.
开机前必须检查各部份机械和电器是否正常，以免造成机器故障或人身伤害事故。
In the use of electric motor by enterprise, mechanical failure may cause accidents, which result in touch between stator and rotor or stop or damage of coil.
工矿企业电动机在使用过程中，由于机械出现故障造成扫膛、卡死、烧坏线圈等事故。
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