利用工厂燃烧废弃的稻壳灰与碱液反应制备硅酸钠。
The rice husk ash abandoned by the factory after burnt was used to prepare sodium silicate after reacted with alkali liquor.
目的：观察硝酸毛果芸香碱注射液对实验性家兔眼睛缩瞳作用及刺激性和毒性反应。
Objective: to observe and study the effects of pilocarpine nitrate injection on the pupil contraction, irritation and toxic reaction in experimental rabbits.
综述了近年来固体酸催化、固体碱催化剂和其它载体催化剂的特性及在液相有机化学反应中的应用成果，催化机理及发展趋势。
The property and influencing factors of supported catalysts are discussed. Some important liquid phase organic reactions in which they used and future trend…
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