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汉语拼音：gòng jià jiàn

原子间通过共用电子对所形 成的相互作用。分非极性键和极性键。

共价键 [gòng jià jiàn]

1. 原子间通过共用电子对而形成的化学键。如在形成氯分子时，电子不是从一个氯原子转移到另一个氯原子，而是在两个氯原子之间形成共用电子对，通过共用电子对形成共价键。

• It is often represented by a single line between the symbols of the two atoms that are bonded together.

  通常用两个原子符号之间的连线来表示共价键的形成。

• wherein the compound of formula I further comprises at least one covalent bond with a biotin residue or an analogue thereof.

  其中式I化合物进一步含有至少一个连接生物素残基或其类似物的共价键。

• A process to produce a crosslinker includes incorporating a pendent group comprising a covalently bonded phosphorous atom.

  制备交联剂的方法，包括引入具有共价键合的磷原子的侧基。

• Peroxide: Any of a class of chemical compounds in which two oxygen atoms are linked by a single covalent bond.

  过氧化物：任何由两个氧原子以单个共价键相互结合在一起的一类化合物。

• Crosslinkers having a covalently bonded phosphorous atom, the phosphorous atom having at least one covalently bonded oxygen atom.

  具有共价键合的磷原子的交联剂，所述磷原子具有至少一个共价键合的氧原子。

• The covalent bonding to the polymer chain provided stability towards solvents and a migration stabilizing effect.

  从共价键到聚合物链的转变使其在介质中更稳定，更不易迁移和挥发。

• High-molecular-weight components can be formed by the formation of SPI intermolecular covalent bonds through modification with MTG .

  经MTG改性后SPI可在分子间生成共价键，形成相对分子量较大的聚合物。

• For the last 100 years, they have done that mostly by making and breaking the strong covalent bonds that form when atoms share electrons.

  过去百年来，他们大多靠形成与破坏原子共用电子时所产生的强大共价键来达成目标。

• A covalent bond formed by a shared pair of electrons (see bond).

  共享一对电子，形成的共价键（见键）。