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reequipping of sinking facilities
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reequipping of sinking facilities
Encyclopedia
工学
井巷掘进与支护
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reequipping of sinking facilities
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竖井井筒掘砌施工完成后,为利用凿井井架、提升机等设施继续施工车场、巷道、硐室等工程,对凿井设施进行的改造工作。
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