当水泵和其他机械设备不可得时，要把供给标准化，修理专家和燃料都应该能在当地找到。

Where pumps and other mechanical equipment are unavoidable, supplies should be standardized, and repair expertise and fuel should be available locally.

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机械设备的大修理与更新之间存在合理的经济界限。

There is a reasonable economic limit between general overhaul and renewal of mechanical equipment.

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第十三条检查修理机械设备、电气设备时，必须挂停电警标牌，并设人监护。

XIII. When mechanical and electrical equipment is examined, a power-cut warning must be hung on under the supervision of a designated person.

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