基本解释[经济学]回转式风钻英汉例句双语例句May operate air-track, rotary, down-the-hole or other drilling machines to drill blast holes or may direct drilling of blast holes.操作空气运作轨道，旋转，向下钻孔机或其他钻探机钻爆破洞或直接钻爆破洞。rotary air drill更多例句词组短语短语rotary y air drill 回转式风钻rotary air drill更多词组专业释义经济学回转式风钻