I know a wonderful restaurant where we can have lunch next week.我知道一家很不错的餐厅，下周我们可以去那里吃午饭。I have started planning out what I shall be doing next week.我已开始详细安排下周要干的事儿了。All those invited to next week'speace conference ...
本文列举了一些含卤族元素的氧化剂对不同种类醇的选择性氧化实例.This article enumerate some Halogen - based oxidants and their some important applying examples.我们认为这是卤族离子与芳羧酸吸附竞争,使芳羧酸分子从银胶表面脱附所导致的.The influence of halogen ions on SERS of aromatic acids ...