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The author has 2 posts.

鈮！

Floor 1 浅风仁樱 3/26/24 20:29
Floor 6 浅风仁樱 3/27/24 13:05

Reply @巨大八爪鱼 on Floor 4:

ph值小於1或者大於14就沒有意義了。
pH值代表的是氫離子濃度

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