| 单词 | 酸碱度 |
| 释义 | DEFINITIVE EXAMPLES 权威例句〔alkaline〕A pH test measures the acidity or alkalinity of a substance.pH值测试可检测物质的酸碱度。柯林斯高阶〔alkalinity〕A pH test measures the acidity or alkalinity of a substance.pH值测试可检测物质的酸碱度。外研社新世纪〔neutrality〕Pure water is neutral with a pH of 7.纯水是中性的，酸碱度为7。柯林斯高阶〔pH〕Most unpolluted rainwater has a pH of around 5.0.大部分未受污染的雨水酸碱度为5.0左右。麦克米伦高阶〔strength〕What's the scale that's used to compare the strength of acids and alkalis?用哪一标准来比较酸碱度？外研社新世纪 |
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