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
护在架棚及锚网护巷道中的安全作
进行了全面分析,
出了改进方案和存在问题,确保了金属护的安全作。
Safety effective of metal forepole support was analyzed in beam and bolting with wire mesh,problem and improvement was given safety effective was ensured.
针对金属护在架棚及锚网护巷道中的安全作进行了全面分析,出了改进方案和存在问题,确保了金属护的安全作。
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