underground haulage units 井下运输设备
a underground haulage system 井下运输系统
underground trolley haulage 井下电机车运输
underground secondary conveyor haulage [矿业] 井下次级输送机运输
underground auxiliary haulage 井下辅助运输
underground locomotive haulage 矿井机车运输
underground main-line conveyor haulage [矿业] 井下干线输送机运输
The paper expounds the importance and advantages of underground auxiliary trackless haulage, and introduces its applied status and making level in our country.
阐述了煤矿井下无轨辅助运输的重要性和优越性，介绍了国内的应用现状和国产化程度。
In view of real situations in multi level underground mines, a computer simulation model of reliability of mining haulage system with two ore bins has been established.
针对我国多水平开采矿井的实际情况，建立了具有两级缓冲仓柔性连接运输系统可靠性的计算机模拟模型。
Research on continuous ore drawing and haulage equipment for underground metal mines has widely been done in main foreign countries with mining industry.
国外主要矿业国家对地下金属矿山连续出矿运矿设备进行了深入的研究。
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