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从理论和实践两方面初步证明,在pH=2～3的硫酸锌溶液中,采用丹宁沉淀锗,生成物为一三元异核络合物——聚合丹宁锗酸锌。
From theory and practice, it is initially proved that tannin precipitates germanium in zinc sulfate solution of pH = 2-3, and the product is a ternary heteronuclear complex - polymerized tannin germanate.