房子里似乎悄然无声，安静得好像已经没人在住一样。The house seemed muted, hushed as if it had been deserted.如果当时我再多说一点的话，结果或许会不一样。Things might have been different if I'd talked a bit more.还有其他的房子能像这幢一样俯瞰首都吗？What other home offers such a comm...
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...