煤矿主 meaning in English
coal master
coal-master
Examples
- The owners of the coal mines had formed an association to protect their interests .
煤矿主们早组织了一个同业公会以保护他们自己的利益。 - The construction of winch braking system in main well of renlou mine
任楼煤矿主井绞车制动系统改造 - Study on the reform plan of main hoist skip in hiang jia coal mine
梁家煤矿主提升箕斗改造方案研究 - Design of selecting system of type for master ventilation in coal mine
煤矿主通风机选型系统的设计 - Temporary winding change construction of main shaft in huxi coal mine
湖西煤矿主竖井临时提绞改装施工