contamination precipitation 中文意思是什麼
contamination precipitation
解釋
雜質沉澱- contamination : n. 污染；污穢，污物；（語言的）交感，感染錯合；（文章，故事等的）混合，拼湊。 ideological contamination精神污染。
- precipitation : n. 1. 猛然摔下，落下。2. 猛沖；急躁，輕率，魯莽。3. 【化學】沉澱（作用）；降雨（量）；（雨、雪等的）降落。
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Besides, it is worth to mention here, when the fresh tea leaf was washed with distilled water, a larger quantity of the lead can be washed off from the tea leaves, suggesting that precipitation of atmospheric lead can also cause in the lead contamination of tea leaf
通過用水清洗鮮葉發現，茶葉表面有相當一部分的鉛可以洗脫下來，這說明在茶葉的種植過程中，大氣中粉塵沉降對茶葉也有鉛污染的作用。
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