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.In the presence of ethanonitrile and glycol, anisole reacts with ammonium ceric nitrate to form o - nitroanisole.研究了五氯化钼参与的苯甲醚和叔丁醇在正己烷溶剂中的烷基化反应,结果显示出很高的对位选择性.The alkylation of anisole wi...
她能听到他不均匀的呼吸声，似乎他是跑着过来的。She could hear his ragged breathing, as if he had been running.他看着埃伦，她正呼吸均匀地睡着。He looked at Ellen, breathing evenly in her sleep.尽量放松，保持平稳呼吸。Relax as much as possible and keep breathing steadily....
The invalidity of one clause does not invalidate the agreement.本协议任何一款无效不影响整个协议的效力.Failure to disclose all material information could invalidate the insurance.如隐瞒任何重要事实,均可导致本保单失效.The Security setting to invalidate versio...