空压机、电源及焊头均正常但无法操作的翻译：Air compressors, power and welding head is fine but could not be operated 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

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Air compressors, power and welding head is fine but could not be operated

But the air compressor, the power source and the sealed end normal are unable to operate

air compressor, power supplies and welding points are normal but was unable to operate

Air compressors, power and welding head is fine but could not be operated