covalency
n. [物化] 共价;共有原子价
例句
And why did he call it polar covalency?
为什么要称它为极性共价呢?
This is pure covalency. This is polar covalency.
这是平均共价,它是极性共价。
So you can see that polar covalency is a tendency towards ionic bonding.
所以你看得出极性共价就是,趋向离子键的。