Relative humidity, a percentage, is the ratio between the water vapor present and the air's saturation point, a figure that changes with the temperature.
相对湿度，是空气中绝对湿度与饱和湿度的比值，它随着温度变化。
Relative humidity RH refers to the humidity saturation percentage of the air in certain volume.
相对湿度RH是指一定容积内空气的湿度饱和百分比。
Correlation between relative humidity and degree of capillary saturation derived in the laboratory is not suitable to the service life prediction.
混凝土保护层孔隙水饱和度是混凝土结构钢筋腐蚀寿命预测模型的关键参数。
Droughtpractice sharply decreased critical saturation deficiency and plant humidity needed (PHN) which made the plant water content improved under the condition of the same soil moisture.
干旱锻炼能明显降低临界饱和亏和植株需水度，使植株含水量在相同的土壤水分条件下得到改善。
When humidity in the atmosphere reaches saturation, it starts to rain.
大气中的湿度达到饱和，就会开始下雨。
When humidity in the atmosphere reaches saturation, it starts to rain.
大气中的湿度达到饱和，就会开始下雨。
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