短语词组短语ion transfer pump 离子传输泵ion exchange pump 离子交换泵ion drag pump 离子拖拽泵ion getter pump 离子吸气泵ion vacuum pump 离子真空泵Ion n pump 离子泵ion sorption pump 离子吸泵ion sputtering pump 离子溅射泵ion gettering pump 离子吸气泵英语 返回 ion pump