原程序是按自由区段格式书写的。

The source program is written in a free field format.

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我们会使用这一技术来将程序段绑定到原程序。

We will make use of them when binding the stub to the original application.

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与原程序比较，不仅提高了计算速度，也扩展了功能。

Comparing with the original program, this one can not only increase the calculating velocity but also extend its functions.

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Same way that I have multiplication or division as a primitive, functions are going to give me, or somebody else who wrote them for me as part of a library, a new primitive that I'm going to be able to use.

我在用乘法或者除法当做原语,这些函数,或者别人写程序库中的函数,将会给我返回一个,我能使用的新原语。

麻省理工公开课 - 计算机科学及编程导论课程节选