K+、Na+的选择性吸收
selective absorption to K~+ and Na
UPS冗余方式的选择
Choice of the UPS Redundance Method
避孕方法的选择
Contraceptive method choice
波长可选择的星形耦合器
wavelength selective star coupler
材料的选择与应用
selection and application
铲运机传动系的选择
scraper transmission selection
传统文化的选择与阐释
choices and illustrations on traditional culture
醇的选择性氧化
selective oxidation of alcohol
大孔口闸门型式的选择
Gate Type Selection for Large Orifice
电器的选择
selection of electric apparatus
动物的选择性繁殖
Selective breeding of animals