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soil solution ion
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soil solution ion
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农学
土壤溶液离子
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soil solution ion
土壤溶液离子
土壤中,原子由于自身或外界的作用而失去或得到一个或几个电子使其达到最外层电子数为八个或两个(氦原子)或没有电子(四中子)的稳定结构。
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forestry of Yunnan province
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更新时间:2026/7/15 16:39:15