Grounding and protection of electric equipment of oil field enterprise has been discussed, and its grounding and protection proposed also for oil traction, drilling and prospecting.
对电气设备的接地与保护问题进行了论述，并对采油、钻井、物探等作业环境中的电气设备问题提出建议。
The traction power rectifier is the key equipment in the circuit of diesel locomotive with electric transmission.
牵引整流柜是电传动内燃机车的主电路的的整流设备。
The traction power rectifier is the key equipment in the circuit of diesel locomotive with electric transmission.
牵引整流柜是电传动内燃机车的主电路的的整流设备。
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