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井巷掘进与支护
释义
井巷掘进与支护
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工学
井巷掘进与支护
释
drifting and support
井巷掘进与支护
为开采地下矿体而进行井筒、平巷(硐)和硐室等的开凿与支护的作业活动。又称井巷工程。
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