作业的第一步是射孔，射孔后循环一周以排除气体溢流的可能性。

The first step of the process was to perforate, and after the guns were fired, to circulate bottoms up to handle any possible influx of gas.

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Layman建议，“如果想增加蛋白摄入量，请以一周为循环慢慢地增加摄入量。”

"If you want to increase your protein intake, do it slowly over the course of a week," he recommends.

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我们一直遵循一个循环的开发流程，并发现以一周为循环周期对我们来说最适用。

We're following an iterative development process - and found out that a length of one week seems to work best for us.

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There's no change in them, and then we also looked at some at non-state functions, work and heat, and saw that those aren't zero going around a cycle. Of course you can do work in a cyclic process, and heat can be exchanged with the environment at the same time.

它们不会有变化，然后我们研究了,一些非态函数，功和热量，并看到,沿着循环行进一周的话,它们并不是零，当然你可以在,一个循环过程中做功，而同时热量可以在系统,与外界环境之间进行交换。

麻省理工公开课 - 热力学与动力学课程节选