number required

on average, a u. s. woman has 2. 1 babies in her lifetime. that's the "magic number" required for a population to replace itself.

平均来说，美国妇女在其一生有2.1个婴儿，这就是“幻数”所需的人口，以取代本身。

in more and more countries, women started having fewer children than the number required to keep populations stable.

在越来越多的国家，女人生育的孩子数量已经无法维持人口的稳定。

score consecutive kills of zombies beyond the number required.

得分的僵尸电脑连续杀死数目超出了。

that is also the number required to win the presidential election in this game.

这也是需要在这场比赛中赢得了总统选举的数目。

taking living organisms away from their habitats should only be done for a clear and specific purpose. collect the minimum number required.

必须在有真正需要的情况下，方可把生物带走，而且只可带走最少的数量。

check that the number of arguments you have supplied matches the number required by the target.

检查所提供的参数个数是否与目标所需要的参数个数相同。

Precise Calculation of Theoretical Plate Number Required for Cas Chromatography Separation& A Probabilistic Model of Nonlinear Adsorption/ Partition Processes

气相色谱分离理论塔板数的精确计算&一个非线性吸附/分配过程的概率模型