relative humidity

漢語翻譯

英文解釋：

名詞 relative humidity:

1. the ratio of the amount of water in the air at a give temperature to the maximum amount it could hold at that temperature; expressed as a percentage

例句：

1. An instrument designed to indicate or control the relative humidity of the air.
   恆濕器一種用於顯示或控制空氣中相對濕度的儀器