1) Turn the gas cock on.
打开瓦斯栓。
2) Turn the gas cock off.
关瓦斯栓。
3) gas production
瓦斯开采
4) mining in highly gassy coal seam
高瓦斯煤层开采
5) methane
[英]['mi:θeɪn] [美]['mɛθen]
瓦斯
1.
Directional Drilling for Methane Drainage in Advance of Mining;
采前瓦斯抽放定向钻进技术
2.
Controlling measures of methane and coal dust and ventilation method in fully mechanized excavation face;
综掘工作面治理瓦斯煤尘通风方法的探索
3.
Integrated control technology for methane in mining faces;
回采工作面瓦斯综合治理技术
6) coal gas
瓦斯
1.
The Analysis of Geological Factors to the Existence of Coal Gas in the Sunan Coal Mining Area and Xutuan Coal Field;
浅析宿南矿区和许疃井田瓦斯赋存的地质因素
2.
Dilution process of the coal gas in the laneway with pressured-injection ventilation and extracted methods had been analyzed comparatively.
本文对煤矿瓦斯治理中压入式与抽吸式通风方式对掘进面附近瓦斯浓度稀释规律进行了对比分析,主要考察两种通风方式对于瓦斯析出量出现变动的适应能力。
补充资料：高瓦
1.高屋上的瓦。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条