The method was established for purification of diflubenzuron by crystaltechnique with mixed solvents.
本文论述了利用混合溶剂—— 结晶法提纯除虫脲的分析技术。
2
Liquid crystaltechnique was used to measure the glycerin temperature distributions in an agitated tank heated by vertical tubes.
利用液晶测温技术测量了垂直列管加热的搅拌槽内甘油的温度场分布。
3
Their first strategy is a technique, common in chip manufacturing, called doping, in which atoms of some other element are added to a semiconductor crystal.