quadrupole lens

• 四极透镜

quadrupole lens的用法和样例：

例句

1. Plural axially spaced electrostatic quadrupole lenses are formed between facing ones of the first and second groups of focus electrodes.
   第一和第二组聚焦电极的面对的电极之间形成多个轴向隔开的静电四极透镜。