地方法规将规定在公共场合抽烟为非法。By-laws are to make it illegal to smoke in public.我可以抽烟吗？Do you think it would be all right if I smoked?杰克逊说她的老板情绪越来越低落，又开始拼命抽烟了。Jackson said her boss became increasingly depressed and reverted to smoki...
Purification of 2,6 dichlorotoluene by the recrystallization method without solvent was studied.研究了用无溶剂重结晶法提纯2,6二氯甲苯.Taking p chlorotoluene as raw material , 2,4 Dichlorotoluene was synthesized via catalytic chlorination...
In the presence of ethanonitrile and glycol, anisole reacts with ammonium ceric nitrate to form o - nitroanisole.在乙腈、聚乙二醇存在下, 用苯甲醚与硝酸铈铵反应合成了邻硝基苯甲醚.Calcium reacts with water.钙和水会发生化学反应。Once in water, it reacts to form car...
Microbiology was a newborn science.微生物学是新生科学。His work advanced the science of microbiology.他的工作促进了微生物学这门科学.His research is the last word in microbiology.他的研究在微生物学方面达到了登峰造极的地步....