hard water meaning in English
硬火
硬水
Examples
- Hard water furs the kettle .
硬水使水壶生水垢。 - Hard water which can be softened by adding sodium carbonate is called permanent hard water .
经过加入碳酸钠能被软化的硬水，称为永硬水。 - Study on softening of hard water by 13x - zeolite
沸石用于硬水软化的研究 - Household electrical appliances - performance - hard water testing
家用电器.性能.硬水试验 - Surface active agents - determination of stability in hard water
表面活性剂.硬水中适应性测定