短语词组短语plaster -mold cast 石膏模铸造plaster r mold 石膏模plaster mold process 石膏模铸造法;石膏模法foaming plaster mold 发泡石膏型fusible plaster mold cast 石膏型熔模铸造fusible pattern plaster mold 熔模石膏型plaster mold casting 石膏模法;石膏模铸造 返回 plaster mold