This reaction, called the Hofman elimination, is quite analogous to the dehydrohalogenation of an alkyl halide.这个反应称为Hofman消除反应, 它很像卤代烷的脱卤化氢反应.This paper discussed three methods of producting vinyl etherspreparation from...

宇宙飞行器，航天器...

If have the presumptuous place to invite you apprehensibility!如果有冒昧的地方请你能理解!...

adv.事先，预先，提前adj.提前的，预先准备好的...

Jehovah的音标：Jehovah的英式发音音标为：[dʒɪ'həʊvə]Jehovah的美式发音音标为：[dʒɪ'hoʊvə]...

If they carry on sinking boreholes then the land is likely to subside.如果他们继续钻洞，地表很有可能下沉。The correctness of the result was proved by some underground boreholes.经过少量的井下钻孔验证,证实了结果的正确性.This paper describes the substance a th...

We do not know which behavioural traits are inherited and which acquired.我们不知道哪些行为特征是遗传的,哪些是后天养成的.How these behavioural changes come about was, until recently, obscure.这些行为改变是如何产生的至今仍让人费解.For many years behavioural econo...

A freehold property situates in the borough of Richmond.位于里士满行政区的完全保有房产.The property register will also say whether the property is freehold or leasehold.房产注册簿上也会说明房产是终身保有的还是租借的。People owning leasehold homes will be give...

酮醛变位酶...

肉桂醛...

reprehend的音标：reprehend的英式发音音标为：[ˌreprɪ'hend]reprehend的美式发音音标为：[ˌrɛprɪ'hɛnd]...

n.顺丁烯二醛，马来醛...

behaving的音标：...

The material is readily prepared by reaction of formaldehyde and hydrazine.这种物质很容易由甲醛和肼反应而得到.Formaldehyde slowly inactivates many viruses.甲醛能慢慢使多种病毒失去活性.Sulfur dioxide and formaldehyde both produce irritation.二氧化硫和甲醛都可产生...

The twins endorsed a line of household cleaning products.那对双胞胎为一系列家用清洁产品做广告。My agent told me, "This'll make your name a household word."我的经纪人告诉我：“这将使你一举成名。”Josh expects me to manage all the household expenses on ver...

ketonaldehydmutase的音标：ketonaldehydmutase的英式发音音标为：[ketəʊnldɪhaɪdmju:'tæs]ketonaldehydmutase的美式发音音标为：[ketoʊnldɪhaɪdmju'tæs]...

incomprehensible的近义词/同义词有：vague, unintelligible, obscure, difficult, vague, equivocal, unintelligible, obscure, difficult, enigmatic, complicated, abstruse, expressionless。adj.incomprehensible的近义词（难以理解的）：vague, unintelli...

n.误会，误解( misapprehension的名词复数 )...

He was much annoyed at my remark and called me a diehard.他听了非常不高兴,竟骂我思想顽固.Though there are always predictable throngs of diehard Beatles fans and classic?尽管有大批可预见的披头士发烧友和古典摇滚乐迷抢购这些最新包装的音乐作品,但这一回主要的购买者却是12岁甚至更小的孩子.John is...

Gehlenite is the major constituent in the gasification residue of raw char.原煤焦气化残渣中主要含钙铝黄长石....

n.高氯酸镁...

BHP's $ 130 a share cash offer does not currently require shareholder approval.必和必拓目前每股130美元的现金出价不需要股东的批准.The main shareholder is financial powerhouse - Allianz Group.主要控股公司为财力雄厚的德国安联保险集团.Become a shareholder is the...

They have prehensile lips for feeding on leaves and saplings.它们都具有能卷握东西的嘴唇,可用于取食树叶和树苗.the long prehensile proboscis of an elephant大象的可缠卷的长鼻Poets are those strangely prehensile men.诗人是那些具有深刻洞察力的人们.Buy a bridle , north cit...

去肝的...

Krabbe has always vehemently denied using drugs.克拉贝一直断然否认使用毒品。Both women vehemently deny the charges against them.两名妇女都激烈地否认了对她们的指控." I hate to hear you talk like that, Ashley,'she said vehemently." 我不要听你说那样的话, 艾希礼,...

misapprehensions的音标：misapprehensions的英式发音音标为：[mɪsæprɪ'henʃnz]misapprehensions的美式发音音标为：[mɪsæprɪ'henʃnz]...

n.甲醛，福尔马林，甲醛水溶液...

freehand的音标：freehand的英式发音音标为：['fri:hænd]freehand的美式发音音标为：['friˌhænd]...

cineholomicroscopy的音标：cineholomicroscopy的英式发音音标为：[sɪnɪhɒləmaɪ'krɒskəpɪ]cineholomicroscopy的美式发音音标为：[sɪnɪhɒləmaɪ'krɒskəpɪ]...

The property register will also say whether the property is freehold or leasehold.房产注册簿上也会说明房产是终身保有的还是租借的。I went into a leasehold property at four hundred and fifty pounds rent per year.我以每年450英镑的租金租了一所房子。Second one need...