在计算机程序设计中指执行一次调用。

In computer programming, to execute a call.

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在计算机程序设计中，COBOL程序中代表一个逻辑处理实体的一部分。

In computer programming, section of a COBOL program that represents a logical processing entity.

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在计算机程序设计中，指能在一种以上计算机系统上运行的一些程序的特性。

In computer programming, the characteristics of programs in a form that enables them to be run on more than one computer system.

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Now, unlike high school math or in algebra Z where you call things X and Y and Z, in programming, in computer science, you're actually dealing with humans where it's useful to have a variable name that's more descriptive than X and Y and Z.

不像高中数学或者代数中,称为X和Y和，在程序设计和计算机科学里，你实际上是在和人打交道,在这里有个描述性比xyz更强的,变量名称是很重要的。

哈佛公开课 - 计算机科学课程节选