Drillet德里耶drilln.钻孔机；钻子；反复操练；播种机v.练习；钻孔；(军事)训练drilling troubles钻井故障driller's monitordriller insertion钻机就位drill stem stress钻柱应力Drilled pipelines打孔管道Drilling assembly钻具组合drilling accident孔内事故drill point gauge钻头角度规drilled equipment成孔机械drilling operator[经] 钻井操作者, 钻井作业者, 钻井经营商