个数的英文：
number

The variance is simply the average squared difference of all numbers from their mean or average value.
方差就是各个数的中值（或平均值）与各个数的差值的平方的平均值。

A number that may be represented by a finite or infinite numeral in a fixed-radix numeration system
在固定基数记数系统中，能够用有限或无限个数字表示的一种数。

Number of curing cabinets
硫化室个数

Count up to ten before you open your eyes.
你数十个数再睁开眼睛。

Find the largest common factor of the two numbers.
找到两个数的最大公因子。

The position of a figure in a numeral or series.
位某一数列中一个数目的位置

The animals have an uneven number of toes.
这些动物脚趾的个数为奇数。

This is the number of things I'm adding to tot.
这就是我计算的总数的个数。

Have you got the right money(ie exact fare)for the bus?
你有买公共汽车票(那个数)的零钱吗?

In data communications,the dividing of one or more information streams into a larger number of streams.
在数据通信中把一个或多个信息流分成个数更多的信息流的过程。

The number was fifty.
该数字为五十。

There is safety in numbers
人多势众

It was an irrational number.
这是一个无理数。

Which number on the card is a prime number?
在卡片上哪一个数字是最初的数字？

The number raised to the logarithm of a designated number in order to produce that designated number.
被升到指定数字的对数上的数量,是为了得到那被指定的数目。