Safety effective of metal forepole support was analyzed in beam and bolting with wire mesh,problem and improvement was given safety effective was ensured.
针对金属前探支护
架棚及锚网支护巷道中的
用进行了面分析,
出了改进方案和存
,确保了金属前探支护的用。
Safety effective of metal forepole support was analyzed in beam and bolting with wire mesh,problem and improvement was given safety effective was ensured.
针对金属前探支护架棚及锚网支护巷道中的用进行了面分析,出了改进方案和存,确保了金属前探支护的用。
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