One-to-one onto function is also called bijection . 一对一到上函数称为双映射。
2.
Two sets are said to be equivalent if and only if they can be placed in one-to-one correspondence . 当且仅当两个集合中的元素一一对应时,才称它们为等势。
3.
It is legitimate to envisage a more or less one-to-one correspondence between cloud nucleus concentration and the concentration of cloud droplets . 拟想云核浓度与云滴浓度之间有或多或少的一一对应关系是合理的。