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...
She swathes her face in a veil of decorative muslin.她用装饰性的薄纱遮住了脸。Truscott's verbosity made it hard to separate plain fact from decorative embellishment.特拉斯科特说话啰唆，让人很难分清哪是纯粹的事实哪是添油加醋的修饰之辞。Tiffany revamped her sitting...
把她的人生比作一次海上航行不足以说明她丰富的经历。The comparison of her life to a sea voyage simplifies her experience.一艘捕鱼船和一艘货船在波涛汹涌的海上相撞了。A fishing vessel and a cargo ship collided in rough seas.绿色和平组织设法聚集起足够数量的小船在海上拦截该船。Greenpeace managed to...