Now we have the recirculation system.

现在我们有再循环系统。

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Air also flows into the lavatories from the cabin air distribution and recirculation system through individual air outlets.

空气也可以从客舱空气分配和再循环系统，通过单独的出口，流向厕所。

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The system design also features a patented recirculation system to ensure adequate motor cooling for even greater reliability.

该技术还采用具有专利产权的液体循环系统，以确保马达具有足够的冷却效果，使系统具有更高的可靠性。

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"You have to get the recirculation system up and functioning so they can cool that water in the normal way, " said Gary Was, a nuclear engineering professor at the University of Michigan and a CNN consultant.

CNN: STORY HIGHLIGHTS