网络释义专业释义英英释义
double bond [物化] 双键 ; 双键接头 ; 化学
double bond migration [物化] 双键移位
isolated double bond 孤立双键 ; 隔离双键
endocyclic double bond 桥环双键 ; 内分泌学
internal double bond 内双键 ; 内双链
double bond index 双键指数 ; 双键率
double bond
- n. a covalent bond in which two pairs of electrons are shared between two atoms
以上来源于: WordNet
柯林斯英汉双解大词典
double bond
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1.
N a type of chemical bond consisting of two covalent bonds linking two atoms in a molecule 双键
双语例句原声例句权威例句
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Or if we look at how strong it is, it's actually stronger than a single bond, but weaker than a double bond.
或者如果我们看键的强度的话，它实际上比单键更强，而比双键更弱。
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So really, you can not ever rotate a double bond, it makes your molecule very rigid.
实际上，你不能转动一个双键，它使得你的分子很坚固。
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So if we look at its length, it's actually shorter than a single bond, but longer than a double bond.
因此如果我们看它的键长的话，它实际上比单键更短，却比双键更长。
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So let's take a look at what actually happens if we're talking about a carbon-carbon double bond, we're going to have a double bond.
让我们来看一看碳碳双键的情况,例如在乙烷里，我们有个双键。
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So, if we talked about a nitrogen-nitrogen single versus double versus triple bond, the triple bond will be the shortest and it will be the strongest.
因此，如果我们讨论的是氮与氮之间的单键,双键与三键，那么三键应该是其中最短的一个，同时也是最强的一个。
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