预电离的 meaning in English

pre-ionized

In contrast to pulsed discharge without preionization , the working voltage of the laser falls about 20 % and the electro - optical efficiency is improved approximately 30 %
和无预电离的脉冲放电相比，激光器的工作电压下降了大约20 ，电光转换效率提高了大约30 。
In this dissertation the operation mechanism of pulsed - preionization diffusive cooling co _ 2 , laser is studied . pulsed preionization technology is put forward to improve the stability of discharge , decrease the operating voltage , and enhance the electro - optical efficiency
本文研究了脉冲预电离的扩散冷却co _ 2激光器的运转机理，提出采用脉冲预电离技术改善纵向脉冲放电的稳定性、降低工作电压和提高电光转换效率。