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- This paper introduces a microcomputer in a coal mine methane concentrations exceeding the detection alarm device design and debugging methods. 介绍了一种采用单片机的煤矿甲烷浓度超标检测报警装置的设计与调试方法。
- The latest progress in the directional drilling system and its various applications including in-seam methane drainage, gob gas drainage, coal mine methane commercial recovery, etc. are presented. 本文介绍了定向钻进系统的最新进展,以及它在许多方面的应用,其中包括煤层内瓦斯抽放,采空区瓦斯抽放,煤层气商业回收等。
- ZCoal Bed Methane and Coal Mine Methane for power generation 煤层气发电
- Carrier-catalytic-element Detection Apparatus for Measurement of Coal Mine Methane 煤矿甲烷检测用载体催化元件检测装置
- They are ventilating the sap of a coal mine. 他们正在使煤矿坑道通风。
- Enhance one-hole-many-using technology study and implement coal mine methane management safely and efficiently 加强一井多用技术研究实现瓦斯安全高效治理
- That coal mine is no longer worked. 那个煤矿已经不经营了。
- coal mine methane(CMM) 煤矿瓦斯
- Coal mine methane 煤层气
- They underwrote the coal mine's bonds. 他们同意买下该煤矿的未认购的股票。
- There is a coal mine near my home town. 我的家乡附近有一个煤矿。
- We decided to open out a coal mine near the city. 我们决定在城市附近开发一煤矿。
- The coal mine was closed down due to exhaustion. 这煤矿因矿源枯竭而关闭了。
- They are developing a new coal mine. 他们在开发新煤矿。
- They sold the coal mine at a profit. 他们把煤矿卖掉赚了钱。
- China Geological Coal Mine Corp. 中国地方煤矿总公司。
- Coal Gas Factory of Datong Coal Mine Gro. 大同煤矿集团有限责任公司煤气厂。
- A passage or gallery in a coal mine. 通道煤矿中的通道或水平巷道
- My grandfather used to work in a coal mine. 我祖父曾在煤矿工作过。
- Liu township coal mine enterprises. 乡镇企业有刘沟煤矿。
