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主平巷
gen. broadgate; level
tech. level road; main drift; main drive; main gallery; main gateway; main heading
主平巷
earth.sc. entry
主平巷通常是沿矿体走向并与矿体相交的平巷相连的水平巷道
expl. main gallery
【矿】主平巷
gen. entry
主平巷沿走向或与矿体平行
earth.sc. level
平巷
tech. main gate
主平 巷
: 10 phrases in 3 subjects
Earth sciences1
General1
Technology8