The principles of purification units with water and alkali wash, and the characteristics of new technology of complex tower and effects of innovation were discussed.
详细阐述了水洗碱洗净化装置的原理及组合塔新技术的特点和改进后的效果。
This paper expounds the principles of palm vein technology, and probes into how to use palm vein technology to establish the new personal identification system in library.
阐述了手掌静脉技术的原理，探讨了如何利用手掌静脉技术建立图书馆新的个人身份认证系统。
It also analysed the principles, the route and technology of synthesis methods, and clarified the new preparation process of two typical aliphatic acid derivative.
并且分析了这几种合成方法的原理、合成路线及合成工艺。具体阐述了两种典型的脂肪酸衍生物脂肪酸甲酯和脂肪酸甲酯磺酸钠的合成新工艺。
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