让创造一个圆圈下面的第一和第三循环。

Lets create a circle below the first and the third circle.

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本文介绍的三循环制冷系统具有上述四方面的优点。

The three cycles cooling system to be introduced in this article has the above four advantages.

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介绍了大庆炼化公司第三循环水场在线清洗的方案制定过程及清洗结果。

The process and its result of the on-line cleaning program in the third circulating water system of Daqing Refining & Chemical Company are introduced.

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So each time through the loop, I'm doing three steps. Three basic operations.

因此每次运行这个循环，我做了三次基本运算。

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Next time through the loop it goes to a cubed.

然后再一次循环变成a的三次方。

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b times. So I've got to go 3 b steps. All right I've got to go through the loop b times I've got three steps each time, and then when I pop out of the loop, I've got two more steps. All right I've got the initiation of answer and the return of it.

好，我一共执行了b次循环,每次循环内部进行了三次基本操作,当跳出循环后还有两个基本操作，因此这个初始的答案就是,2+3b次基本操作,来完成这个循环。

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