饮用水;挥发性卤代烃;氯仿;四氯化碳.Study on the levels of volatile halogenerated hydrocarbon in drinking Linyi City.摘要研究了碳酸铯催化酚与卤代烃反应制备烷基芳醚.Cesium carbonate catalyzed O - alkylation of phenol to synthesize alkly aryl ethers.此外, 芳基硼酸与卤代烃...
我从目击这件事发生的消息提供者那儿探明了事情真相.I found out what happened from my informant who saw it happen.该模型包括市场 、 资源消费者 、 资源提供者以及它们之间的相互作用.The model comprises of markets, resource consumers, resource providers and their interactions.提供者....
Some of our people are traveling with the troupe on its tour.我们中的一些人跟随剧团巡回演出.The troupe produced a new play last night.剧团昨晚上演了一部新剧.The theatrical troupe is touring the country.剧团正在全国各地巡回演出....