求翻译：此外, Yamamoto等[ 8]通过向二价锰盐的溶液中加入碱金属氢氧化物溶液生成氢氧化锰, 然后加入高锰酸钾氧化制备出具有高比表面的二氧化锰。Tanabe等[9-10]用氧气与氯气的混合气体通入氢氧化锰的悬浮液中制得纯度90% 的二氧化锰。Ohtsuka[11]通过用稀酸处理氢氧化锰的空气氧化产物制得活性γ-MnO2。是什么意思？

In addition, Yamamoto et al [8] to the divalent manganese salt solution to generate manganese hydroxide by adding alkali metal hydroxide solution, and then adding potassium permanganate oxidation of a high surface area of ​​manganese dioxide. tanabe [9-10], which leads to a gas mixture of oxygen and

In addition, Yamamoto, etc. [ 8] The Manganese salt 2 price of alkalis hydroxides in the solution to generate hydrogen manganese oxide solution, and then join with potassium permanganate oxidation produced a high-ratio 2 surface of the manganese oxide. Such as Tanabe [ 9- 10] with the oxygen and chl

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In addition, Yamamoto [8] by joining to the Divalent manganese salt solution of alkali metal hydroxide solution of manganese hydroxide, and then add potassium permanganate oxidation of manganese dioxide with a high surface area. Tanabe [9-10] with a mixture of oxygen and chlorine gas into the hydrog

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