基本解釋[經(jīng)濟(jì)學(xué)]牙輪鉆機(jī)詞組短語短語roller -bit t hole rig 牙輪鉆機(jī)roller-bit hole rig更多詞組專業(yè)釋義經(jīng)濟(jì)學(xué)牙輪鉆機(jī)