大家都搜:
横切采矿法
1、crosscut hardware───横切五金件
2、crosscut handsaw───横切手锯
3、staked mining───赌矿
4、crosscut saw───n.用以横锯木料的锯;横切锯
5、crosscut game───横切游戏
6、mining engineer───采矿工程师
7、crosscut sled───横切雪橇
8、columbite mining───铌矿
9、mining───n.矿业;采矿
1、The South ore-bearing zone of Wushan copper mine is mined with ascending horizontal slicing hydraulic fill crosscut mining system. Roof falling and rib spalling occurred in any times.───武山铜矿南矿带采用上向水平分层进路水砂充填法回采,采场多次发生冒顶、片帮。