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6 年
重大突破:人工设计强大新分子可捕获氯离子,有望 ...
据美国地质调查局 (US Geological Survey)估计,仅在美国,每年就有约272吨溶解固体 (包括盐)进入淡水溪流。 只需一茶匙盐就能永久污染五升的水。 氯是地球上存在较为广泛的元素之一,氯元素与另一种元素配对以获得一个电子时,氯离子就形成了。
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