double bond
US /ˈdʌb.əl bɑːnd/
UK /ˈdʌb.əl bɒnd/
名词
双键
a chemical bond in which two pairs of electrons are shared between two atoms
示例:
•
Ethylene contains a double bond between its two carbon atoms.
乙烯的两个碳原子之间含有双键。
•
In organic chemistry, a double bond is often represented by two parallel lines.
在有机化学中，双键通常用两条平行线表示。