drawing shaft

同义词释义

1)drawing shaft,提升井2)hauling shaft,提升井3)hoisting shaf,提升井4)hoisting shaft,提升井5)landing shaft,提升井6)winding shaft,提升井7)hoist pitheadfreame,提升井塔8)cage shaft,罐笼提升井9)air lift well test,空气提升井试验10)lifting,提升