常見例句Since the method causes serious depletion of ore during mining of upper plate,the inclined cutting raise heading together with inclined medium or deep hole kerve is suggested. 以無底柱為代表的崩落采礦法中,切割拉槽至關(guān)重要,而目前無底柱采礦大多采用垂直切割天井與切割平巷并配以中深孔聯(lián)合拉槽的切割方法,但該方法在對(duì)礦體上盤回采過程中損失貧化較大。Keywords kerve;poke core;separtionmechanism; 捅核;拉絲;分揀機(jī)構(gòu);Kervešan 凱爾韋尚KERV (=Kentucky equine respiratory virus) 肯德基馬呼吸道病毒 返回 kerve