longwall mining 长壁开采
- Modern longwall mining employs hydraulic powered supports at the face area.
现代长壁工作面采煤已经在开采区使用液压支架。 - The paper analyses the underground pressure and outflow of gas and compares them with the longwall mining along strike.
就矿山压力和瓦斯涌出等问题与走向长壁开采作了某些比较。 - and Amanat, J. (1988). 'Modeling of ground subsidence caused by longwall mining using finite element and discrete element methods.
''模拟地面沉降造成的长壁开采利用 有限元和离散元方法。
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