He said cold air helps the virus survive in the air and low humidity helps it stay there longer.

他说冷空气有助病毒的存活，低的湿度帮助病毒停留更久。

youdao

Air in airplanes is extremely dry, and viruses tend to thrive in low-humidity conditions.

机舱内空气极其干燥，病毒在低湿环境下更容易存活。

youdao

This consists of air - and water-side economizers that take advantage of the low humidity in the Rocky Mountains region.

包括利用落基山脉地区湿度低的优势，使用空气及水侧节能装置。

youdao

While temperatures were down a bit Wednesday, high-based thunderstorms will be fed by rising air, wind and low humidity, he said.

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Up till now, cabin air systems have kept humidity very low: about 5%.

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Air in airplanes is extremely dry, and viruses tend to thrive in low-humidity conditions.

WSJ: Where Germs Lurk on Planes