A hundred percent humidity doesn't necessarily mean rain.

百分之分的湿度未必意味着要下雨。

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The mine is around 90 degrees Fahrenheit with 90 percent humidity and poor ventilation-a perfect environment for fungus.

矿井的温度有华氏90度，湿度有90%，并且通风极差，是真菌生存的极佳场所。

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Anywhere between 50 percent and 80 percent humidity is considered safe, and placing a pan of water in your storage area can improve conditions.

湿度只要在50%到80%之间就没问题，在贮藏间放盘水可以改善湿度条件。

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Most fruits and vegetables need the relative humidity in storage to be kept between eighty-five and ninety-five percent.

VOA: special.2009.11.30

For example, in the wettest possible absolute humidity, less than 20 percent of the virus was still viable after an hour, while at the driest conditions 80 percent of the virus was still capable of making someone sick.

CNN: Study: Humidifiers may help fight flu

The vegetation-withering dry winds out of the northeast caused humidity levels to plunge from 80 percent to single digits in less than an hour.

NPR: Fire Forces Evacuation Of Campus, Homes In Calif.

Most commercial aircraft in service recirculate 50 percent of the air delivered to the passenger cabin for improved control of cabin circulation, humidity and fuel efficiency.

CNN: Commentary: Flu and your health on a plane