Mechanical maintenance personnel had in maintenance to ensure machine should be in stop working state. And hang them, lest machine suddenly run for the accident happened.
机械维修人员在维修保养时应确保机器处于停止工作状态。并挂上警示牌，以免机器突然运行而发生人为事故。
Mechanical maintenance personnel had in maintenance to ensure machine should be in stop working state. And hang them, lest machine suddenly run for the accident happened.
机械维修人员在维修保养时应确保机器处于停止工作状态。并挂上警示牌，以免机器突然运行而发生人为事故。
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