chemical valence of manganese
chemical valence of manganese
锰的化学价
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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Only strictly controlling the temperature can it be prepared what needed especially for the Cobalt, Manganese precursors because of many chemical valence.
只有控制严格的温度才能制备出所需的产物，尤其对于化合价较多的钴、锰前驱物要尤为重视。
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