定义 中文名称： 井下供电系统 英文名称： underground power supply system 定义： 进入井下的供电电缆、供电设备及其所组成的输电、变电、配电和用电的整体。 应用学科： 煤炭科技（一级学科）； 矿山电气工程（二级学科）； 矿山供电（ 基
双语例句
1
This paper summed up the actual operation situation of the undergroundpowersupplysystem of Dragon Head Mine in recent ten years.
本文对龙首矿井下供电系统近十年来的实际运行情况进行了总结。
2
Through analysis and investigation, the author found out the operational rule of powersupplysystem and based on the rule, a safe and reliable undergroundpowersupplysystem was set up.
通过分析、究，找出了其运行规律，在此基础上建立了安全可靠的井下供电系统。
3
The existing condition of low-voltage powersupplysystem of mine underground was analyzed, in view of the existing problems of low-voltage powersupply line, the improvement scheme was proposed.