单词	weld-on kelly
释义	weld-on kelly 对焊方钻杆
随便看	gravity brake gravity braking system gravity bucket conveyor gravity bucket elevator gravity bulkhead gravity cable logging gravity caging gravity caisson structure gravity caisson wharf gravity carrier gravity casting gravity casting machine gravity casting machines gravity cell gravity cells gravity center gravity center height of wagon loaded gravity center integral gravity chance gravity check gravity checks gravity chute gravity chute feed gravity-chute feed gravity circulating oil system jiu jjac jjba jjbb jjbc jjbd jjbg jjbh jjbjr jjbkzr しこみ杖しこむしこむ【仕込む】しこめしこめ【醜女】しこりしこり【痼り・凝り】しころしころ【錏・錣】しこん