短语词组短語plaster -mold cast 石膏模鑄造plaster r mold 石膏模plaster mold process 石膏模鑄造法;石膏模法foaming plaster mold 發泡石膏型fusible plaster mold cast 石膏型熔模鑄造fusible pattern plaster mold 熔模石膏型plaster mold casting 石膏模法;石膏模鑄造 返回 plaster mold