To fully exploit the resources, Qingtonggou Mercury-antimony Mine adopts the sublevel open stoping with delayed filling to recover the remanent ore-body at the medium stage of 550~600 m.

青铜沟汞锑矿为充分开采井下资源，选择采用分段空场嗣后充填采矿法回采550~600 m中段的部分残矿体。

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A's manager Bob Melvin briefly let his objection to the call be known to first base umpire Chris Conroy, filling in for Tim McClelland, who was delayed.

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