精馏效率 meaning in English

efficiency of rectification
rectifier efficiency

For many experiments , using high pureness mma , controlling polymerization temperature and polymerizing condition under high - pressure nitrogen gas and heat treatment after polymerization , a transparent preform without any bubble and blemishes was prepared . then drawing this preform , gi - pof with diameter 0 . 8 - 1 . 0mm was obtained . because of the limitation of the experimental conditions and the shortage of the money , it is very regretted that we ca n ' t test the index profile and the loss of the gi - pof accurately
在系统研究界面凝胶法原理和聚合机理的基础上，通过多次实验总结、改进，在制备过程中采用提高精馏效率、控制温度、加压聚合、氮气保护和后期处理等措施，制备出无气泡及银纹缺陷、光洁、透明的光纤预制棒，拉丝得到直径0 . 8 - 1 . 0mm的gi - pof 。