短语词组短语single screw motor ship 单螺旋桨内燃机船quadruple screw motor ship 四螺旋桨船;四螺旋桨内燃机船twin screw motor ship 双螺旋桨内燃机船triple -screw motor ship 三螺旋桨内燃机船twin -screw motor ship 双螺旋桨内燃机船 返回 screw motor ship