短語(yǔ)詞組短語(yǔ)drill l collar 鑽鋌Slick Drill Collar 普通鑽鋌drill collar number [油氣]鑽鋌數(shù)字Drill Collar Fingerboard 鑽鋌指粱Drill Collar Slip 鑽鋌卡瓦weight drill collar 偏重鑽鋌drill collar sroove 鑽鋌應(yīng)力減輕槽drill collar stand 鑽鋌立柱 返回 drill collar