短語詞組短語drilling machine tool 鉆削組機rotary drilling steering tool 旋轉(zhuǎn)導(dǎo)向鉆井工具drilling g tool 鉆具measurement while drilling downhole tool 隨鉆井下儀器decompression drilling tool 減壓鉆具drilling tool accident [礦業(yè)]鉆具事故Drilling tool check valve 鉆具止回閥 返回 drilling tool