coal mining face in protected seam
返回 19 条匹配短语对
fully mechanized coal mining face in steep inclined seam
急倾斜综采
protected coal seam mining
保护层开采
abnormal coal mining face
不规则工作面
Coal Mining Face
回采工作面
工作面
回采面
drilling and blasting coal mining face
炮采工作面
Drivage in coal seam prone to outburst
突出煤层掘进
First Coal Mining Face
首采工作面
full-mechanized mining face in thick coal seam
厚煤层综采工作面
fully mechanizad coal mining face
综采工作面
Fully Mechanized Coal Mining Face
综采工作面
综放工作面
Fully- mechanized Coal Mining Face
综采工作面
Fully Mechanized Longwall Coal Mining Face
综采工作面
fully mechanized top coal caving mining face in island seam
孤岛综放面
Gas in Coal Seam
煤层瓦斯
green technique in coal mining
绿色开采
groundwater protected coal mining
保水采煤
high gassy coal mining face
高瓦斯工作面
hydraulic cutting in coal seam
煤层水力割缝
Layout of entry entirely in coal seam
采区全煤巷布置
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