ion-getter pump 离子吸气泵

getter-ion pump 吸气离子泵

getter ion pump 吸气剂离子泵 ; [真空] 吸气离子泵

getter-ion n pump 吸气离子泵

evaporation getter-ion pump 蒸发吸气离子泵

orbitron getter-ion pump 轨旋吸气离子泵

ion n getter pump 离子吸气泵

n getter-ion pump 蒸发吸气离子泵