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0 a number that shows how strongly acid or alkaline a substance is, in a range from 0 to 14
Below pH 6.5 is acid, above pH 7.5 is alkaline. pH值低于6.5为酸性,高于7.5为碱性。
The soil in our garden has a low/high pH. 我们花园里的土壤pH值较低/高。
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European
2021年8月16日
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Shimmer