rainout是什么意思？ rainout 1. 雨水冲洗 2. 清除 例句： the atmospheric degradation of cfc replacements is major source for trifluoroacetate, which may react on oh radical and was wiped off by settlement and rainout mechanism. 氟里昂替代品在大气中的降解反应将产生大量的三氟乙酸，其在大气中可与oh 自由基反应生成三氟甲烷和二氧化碳，主要的去除机制是沉降和雨除，并在地面水中累积； this paper analysed the role of natural vetiation,dry settling,rainoutrespectively in the processes scrubbing the contaminant from urban atmospher. it pointed out that the air quality in urban area is meanly determined bynatural ventilation but the dry settling and rainout play a very important rolein the scrubbing processes. 本文分析了风、干湿沉降在城市内大气污染物清除过程中的作用，指出平均风速对大气质量起主导作用，但在清除污染物方面干湿沉降为主要过程。 from the spatial variations,with the "altitude effect" and rainout process during moisture transport along the yarlung zangbo river valley,18o of precipitation is gradually depleted. 从空间上看,降水中的δ18o从下游至上游递减,造成这种分布特征主要是由于“高程效应”以及水汽远距离输送导致其中的18o被贫化的结果。查看更多
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