网络释义专业释义英英释义
...双键 复分解 闭环反应 苯并吡喃 氨基酸 肽 内酰胺 磺酰胺 磷杂环化合物 [gap=475]Keywords】: ORGANIC SYNTHESIS,DOUBLE BONDS,DOUBLE DECOMPOSITION,RING CLOSURE REACTION,BENZOPYRAN,AMINO ACID,PEPTIDE,LACTAM..
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saturation of double bonds 双键的饱和
conjugated double bonds 共轭双键 ; 共轭双链
CC double bonds CC双键
end double bonds 末端双键
carbon carbon double bonds 碳碳双键化合物
conjugate double bonds 共轭双链 ; 共轭酸盐对
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双键 - 引用次数：60
First,we suggested that the reaction between polyvinylalcohol and conjugated olefine aldehyde includes two kinds ofmechanism which are 1,2-and 1,4-addition reaction,because theconcentration of carbonyl group decreased faster than that ofcarbon-carbon double bonds in the reaction.
首先，根据聚乙烯醇与共轭烯醛反应过程中醛基含量比碳碳双键含量减少得快的特点，提出该反应为1，2-加成和1，4-加成方式并存的机理，并用红外光谱和核磁共振氢谱证实了该机理。
参考来源 - 多羟基化合物缩共轭烯醛的研究
·2,447,543篇论文数据，部分数据来源于NoteExpress
double bond
- n. a covalent bond in which two pairs of electrons are shared between two atoms
以上来源于: WordNet
双语例句原声例句权威例句
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Compounds containing two double bonds are called dienes.
包含两个双键的化合物叫做二烯烃。
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With exocylic double bonds the effect of strain is in the opposite direction .
环外的双键的张力效应导致相反的结果。
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The more unsaturated fatty acids (double bonds) the more susceptible the fat is to rancidity.
不饱和脂肪酸(双结合)越多脂肪越容易腐臭。
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One thing that I want to mention that is really important is once you have double bonds, what happens between those two atoms in the molecule is they can no longer rotate in relation to each other.
我要提醒你们的非常重要的一点事,一旦有了双键，分子中的两个原子,就不能相对旋转了。
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And something that we'll see later on is that triple bonds, for example, are going to be stronger than a corresponding double bond or a corresponding single bond.
而我们以后还会看到三键，举例来说，应该更强，相较于相应的双键,或者相应的单键来说。
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That tells you something about the physical chemistry of the molecule; that it's these hydrogen bonds that hold the double strands and I can break those down under certain conditions.
我们从中可以知道一些,DNA分子的理化特点,双链是由氢键连接在一起,在一定条件下这些氢键可以断裂
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