短语词组短语divergent -nozzle pump 发散喷嘴扩散泵horizontal divergent -nozzle pump 水平发散喷嘴扩散泵;卧式离心水泵vertical divergent -nozzle pump 垂直发散喷嘴扩散泵vertical divergent nozzle pump 垂直发散喷嘴扩散泵 返回 divergent nozzle pump