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乡镇煤矿通过对矿井巷道机械化掘进及支护的改进,提高了掘进的速度,缓解矿井接续紧张,提高装备水平。
Through the mechanized tunneling and support improvement of mine tunnels, the township coal mines have increased the speed of tunneling and alleviated the tightness of the mine and improved the equipment level.