double bond

• n. 双键

英英释义

Noun:

1. a covalent bond in which two pairs of electrons are shared between two atoms

例句

用作名词 (n.)

1. One atom of oxygen is linked to the nitrogen atom by a double bond.
   一个氧原子以双键与氮原子相连。
2. Compounds containing two double bonds are called dienes.
   包含两个双键的化合物叫做二烯烃。