dichloroethane什么意思

In the reaction of acetylation and nitration 1,2 ? dichloroethane was used as solvent.在乙酰化、硝化反应中引入了1,2-二氯乙烷溶剂.Dichloroethane can be converted to VCM.二氯乙烷被转化为氯乙烯.Objective : To investigate the CT and MRI features of Subac...

dichloroethane的音标：dichloroethane的英式发音音标为：[daɪklɔ:rə'eθeɪn]dichloroethane的美式发音音标为：[daɪklɔrə'eθeɪn]...

肉的配给量降到了每人每周一磅。The meat ration was down to one pound per person per week.每周的黄油配给量the weekly butter ration一夜之间,足够全市六个月配给量的粮食付之一炬.Six month's rations for the whole city burned up in one night....

瓜水母目...

ape的第三人称单数（三单）为：apes...

secretion的音标：secretion的英式发音音标为：[sɪ'kri:ʃn]secretion的美式发音音标为：[sɪ'kriʃən]...

n.不安，忧虑...

“渠化”的拼音为：qú huà...

The association between the two companies stretches back thirty years.这两家公司的往来可以追溯到30年前。The Amateur Softball Association's roster of umpires has declined to 57,000.业余垒球协会的裁判员名单上的人数已经减少到了57,000名。The Lawn Tennis Assoc...

toy的一般过去时为：toyed...

他们或许讨厌他的营生，但他们要想活下来必须依靠他。They may hate what he does but their survival depends on him.父母亲最想知道的是：孩子能活下来吗？The first thing parents want to know is: will the baby survive?他活下来的概率非常小。The odds against him surviving are incredi...

“长角羚”的拼音为：cháng jiǎo líng...

jinxes的音标：...

concoction的复数形式为：concoctions...

A large number of hydrocarbons such as benzopyrene are also mutagenic.大量碳氢化合物如苯并芘也是诱变剂....

germifuga的音标：germifuga的英式发音音标为：[dʒɜ:mɪf'ju:ɡə]germifuga的美式发音音标为：[dʒɜmɪf'juɡə]...

dirges的音标：...