No exhaust gas is used in this bioreactor.

生物反应器中没有使用废气。

youdao

Driving it was very similar to any other automatic city car, except there was no exhaust system and no emissions.

感觉和其他自动挡轿车一样，只不过它没有排气系统以及任何废气排放。

youdao

Eventually the new lithium-iodine battery offered a radiation-free eight-to-ten year lifespan, and no exhaust gases to worry about.

最终锂电电池投入使用，电池不仅没有辐射还有八到十年的使用寿命，而且也不会释放出废气。

youdao

The quiet, no-exhaust motor engaged after I started to pedal.

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Even near the exhaust vents theres no flex.

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