It may be a well-known fact, but I didn't know it.这可能是人所共知的事实，但我却不知道。It is well known that bamboo shoots are a panda's staple diet.竹笋是熊猫的主要食物，这是人所共知的。Coca is well-known for reducing hunger, thirst and fatigue.人...
介绍了钛醇盐的合成方法.The synthesis method of titanium alkoxides has been introduced.一种联苯乙酸氨丁三醇盐, 化学式为C18H23NO5.The invention relates to a acid tromethamine salt , of which the formula is C 18 H 23 NO 5.通过优化有机硅 醇盐 的整理工艺,得到适合工厂生产的工...