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 ...
To be honest, she was more of a hindrance than a help.说实在的，她没帮上忙，反而成了累赘。Lack of experience does not constitute a major hindrance to progress.经验缺乏并不是进步的主要障碍.Now they can construct tunnel systems without hindrance.现在他们可以顺利...
I can't bear classing people together nationally, and liking or disliking them.我无法接受按国籍划分人, 然后决定喜欢还是厌恶他们.He had become too powerful for their liking...对他们来说，他现在的权力已经过大了。Simmer over a very low flame until the rice is...
The rate constants of radical and electrophilic addition to alkenes are dominated by different factors.烯烃的自由基加成和亲电加成速率受不同的因素控制.These should be four undetermined constants in the displacement function.位移函数中应有四个未定常数.Some w...
有他们做伴开车陪她回去，她会很感激的。She would be grateful for their company on the drive back.她感激的泪珠禁不住沿着面颊流了下来.She could not help her tears of gratitude rolling down her face.感激的泪珠沿着她的面颊滚下来.Her tears of gratitude rolled down her face....
Tourists can visit outlying areas like the Napa Valley Wine Country.游客可以前往像纳帕谷酒乡这样远离城市喧嚣的地方游览。The outlying villages were formally annexed by the town last year.那些偏远的村庄于去年正式被并入该镇.The main industry on the outlying islands ...