The design of the gun is commonly defined by perveance, beam current, waist radius, waist position and cathode current density.
它的设计主要有导流系数、流、
半径、
及阴极
流密度。
子管导系数The design of the gun is commonly defined by perveance, beam current, waist radius, waist position and cathode current density.
它的设计主要有导流系数、流、半径、及阴极流密度。
声
：
例句、词性分类均由互联网资源自动生成，部分未经过人工审核，其表达内容亦不代表本软件的观点；若发现问题，欢迎向我们指正。
