英德
有道
百度
谷歌
图片
维基
百科
溴素 [xiù sù]
bromine
- 介绍了用溴素、碳酸锂、尿素为原料，制备溴化锂的新工艺。
The article introduces the new proces in preparation of lithium bromide using bromine, lithium carbonate and urea as raw material. - 用薄层色谱法监测溴素溴化乙酰丙酸乙酯生成3-溴乙酰丙酸乙酯的反应过程，优化了反应条件，方法简单，快速，准确。
A simple TLC method for monitoring the synthetic process of 3-bromo-ethyl levulinate is reported, and the reaction condition is optimized. - 考察了反应温度对苯环上溴代产物收率和色泽的影响以及溴素滴加速度对侧链光溴代产物收率的影响。
The influence of temperature on yield and colour of product in bromination of benzene ring as well as the influence of bromine feeding speed on yield of brominated sidechains were investigated.
 |
 |
 |
 |
 |
 |
 |
中国词汇量第二的英语词典
更多精彩，登录后发现......
