告成煤矿升级为煤与瓦斯突出矿井后,将架线电机车改为电瓶车牵引,设计并施工了充电硐室。
After Gaocheng coal mine raising to coal and gas outburst mine, the locomotive with power line is transformed battery locomotive, to construct and design a electrified chamber.
裴沟煤矿升级为煤与瓦斯突出矿井后,将架线电机车改为电瓶车牵引,设计并施工了充电硐室。
After Peigou coal mine raising to coal and gas outburst mine, the locomotive with power line is transformed battery locomotive, to construct and design a electrified chamber.
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