unsaturated bonding

• 不饱和粘结

unsaturated bonding的用法和样例：

例句

1. The unsaturated link occurs in a cyclic system.
   在环体系中存在不饱和键。
2. The elaioplasts of the tapetum produce numerous saturated and unsaturated lipids.
   接著，饱和及不饱和脂肪球于造油体内产生。