趣英语 / pH造句

pH造句

Skin is naturally slightly acidic and has a pH of 5.5.
皮肤具有天然弱酸性，pH值为5.5。

A pH test measures the acidity or alkalinity of a substance.
pH值测试可检测物质的酸碱度。

Pure water is neutral with a pH of 7.
纯水是中性的，酸碱度为7。

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