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