近距煤层开采
返回 19 条匹配短语对
急斜近距煤层
steep and close seem
急针近距煤层
Steep and Close Seems
近距煤层
close coal seams
near distance coal seam group
薄煤层采煤机
shearer for thin seam
薄煤层开采
thin seam mining
mining for thin seam
陡煤层开采
edge coal
多煤层开采
Multi-seam Mining
极薄煤层开采
micro-thickness mine coal face exploitation
开采煤层
working seam
煤层开采
coal seam mining
coal mining
coal extraction
mining
煤层开采地质条件
coal mining geological conditions
煤层开采对策
coal mining actions
深部不可开采煤层
deep unminable coal seams
远距离下保护层开采
far distance lower protective seam exploitation
按煤种分层开采
mining in slices according to coal rank
边角煤开采
Corner coal mining
不可采煤层
unminable coal
unminable coalbed
unworkable seam
采掘迹煤开采
rifled pipe
采煤采气一体化
Integrated Coal Mining and Gas Extraction
最近更新
regional cooperation mechanism半导体激光混凝土致密正填配合比设计bushing for ball mill高浓度硫酸盐filter bracket医院尿路感染交通状态决策信息融合协调性判别