从结构上来说，这个主循环非常简单。上面的代码片段基本上能够囊括你的游戏的整个工作过程。

Structurally, the loop is very simple. The above snippet of code can encapsulate the entire workings of your game.

youdao

针对反应堆的特殊要求，主氦循环风机的设计包括总体结构、叶轮型式、冷却系统、轴承、测量仪表、电气贯穿件和隔断阀。

The design of the helium circulator involves the overall construction, the impeller type, the cooling system, the bearings, the instrumentation, the electrical penetrations, and the shutoff valve.

youdao

It's phosphate, carbon, carbon, carbon, phosphate, carbon, carbon, carbon, phosphate and it has this structure hanging off the side.

就是磷酸基与戊糖的碳反复连接,如此循环往复,这种结构构成了主链的一边

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