... sharp inclined coal cutting method 急倾斜采煤法 coal crushing-cutting machine 破碎切碎机 hydraulic cutting coal 水力采煤 ...
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The testing research about enhancing permeability rate by hydraulic cutting seam on outsize coal sample is introduced.
介绍了特大煤样采用水力割缝提高瓦斯渗透率的实验研究。
Grave protrusion coal seam tunnelling hydraulic cutting protrusion-dispelling measures is a new technology in the world.
严重突出煤层掘进水力掏槽防突措施在国际上是一种防突新技术。
The paper introduces the main functional design of a kind of small cutting coal machine with hydraulic fork lift as feed power and chain-saw cutting knives driven by generator as working head.
论述了一种利用液力叉车作为进给动力，由电机驱动链锯式割刀作为工作头的小型立式割煤机的主要性能设计。
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