On the contrary, it is hard to remove cobalt from cobalt sulphate solutions containing zinc ions.

相反，当硫酸钴溶液中含锌离子时，锌粉置换除钻较难进行。

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On the contrary, it is hard to remove cobalt from cobalt sulphate solutions containing zinc ions.

相反，当硫酸钴溶液中含锌离子时，锌粉置换除钻较难进行。

youdao