Each function can have a variable number of parameters.

每个函数都可以有若干数目不定的参数。

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Certain expressions - such as in - apply to a variable number of expressions.

某些表达式(比如in)可以应用到多个表达式。

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A variable number of worker threads are spawned to process (consume) requests off the queue.

为了处理(消费)队列中的请求，生成了不定数量的工作线程。

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If you have an experiment and the outcome of the experiment is a number, then a random variable is the number that comes from the experiment.

如果你有一个试验,这个试验的结果是一个数,那么相对应的随机变量,指的就是这个试验结果所对应的那个数

耶鲁公开课 - 金融市场课程节选

Hitman: Absolution has twenty levels, made up of a variable number of individual segments, which should give you twenty hours of gameplay.

FORBES: Review, Hitman: Absolution

With this sort of contract, the owner of a big, highly appreciated stock position gets an upfront payment from an investment firm--typically for 75% to 85% of the value of his shares--in exchange for agreeing to deliver a variable number of shares or cash in the future, with the exact amount dependent on how the stock performs.

FORBES: Billionaires' Taxes

Calculating the addition of the number 2 to a variable, for example, can generate 27 instructions in machine code, many of them repetitive.

FORBES: Hardwired