The continuance of protective grounding circuits of industrial electro mechanical equipment must be tested and satisfy with the national standard.
工业机械电气设备保护接地电路的连续性必须进行测试并满足一定要求。
The continuance of protective grounding circuits of industrial electro mechanical equipment must be tested and satisfy with the national standard.
工业机械电气设备保护接地电路的连续性必须进行测试并满足一定要求。
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