两者通过普通的分馏彼此分离.It can be separated from each other by ordinary fractional distillation.气体分馏 - 间歇式聚丙烯联合装置中一些气体的排放会造成很大的浪费和环境污染.The gases light - ends unit may cause serious waste and environment pollution.分馏法只属物理方法,不能分解化合物...
Preparation of salicylic hydrazide . Controlling material mole ratio and the product recrystallization is the key.水杨 酰肼的制备控制原料的摩尔比、产物的重结晶是关键....the degradation of salicylic acid in plants.植物中水杨酸的降解Topical ointments and c...
The southeastern corner under the water tank entirely collapsed.水箱下东南角部分完全毁坏了.We were staying in southeastern Kansas.我们当时呆在堪萨斯的东南部.That's good. We don't sell much in Southeastern Asia, do we?这是好事. 我们在东南亚的销售并不多,...
An extraordinary effort , but this is no ordinary cetacean.这项工作异常艰巨, 因为这是一头非同寻常的鲸鱼.The sperm whale is believe to dive deeper than any other cetacean.人们相信,抹香鲸比其他鲸类动物潜得更深.Impossible, cetacean and larynx is very narrow.不可能,...
警察说他为了逃避逮捕就吞了一颗氰化物胶囊。The police say he swallowed a cyanide capsule to avoid arrest.刚才一口吞下整个鸡蛋，她现在还在打嗝。She was still hiccuping from the egg she had swallowed whole.我们一口吞下了巧克力，满意地咂着嘴。We swallowed the chocolates in one gulp...
He favors extending the school day and school year.他赞成增加每天的课时并延长学年。I belong to the school of thought that favors radical change.我属于激进派.They load him with favors.他们使他备受恩宠....
' The Nutcracker'opens in December.《胡桃夹子》12月开演....an excerpt from Tchaikovsky's Nutcracker.柴可夫斯基的《胡桃夹子》选段Think of The Nutcracker and you imagine chimes and snowflakes.一提到胡桃夹子,你就联想到钟鸣和雪花.Objective To evalua...
He and Lieutenant Cassidy were checking the scene of the crime.他和卡西迪中尉正在勘查犯罪现场。Marshell: So you followed Lt . Col . Cassidy to his command post?马歇尔: 于是你就跟着 卡西地 到了他的指挥所了?Cassidy will be your squadron leader.卡西迪将担任你们中队队长....