“硬水”的拼音

“硬水”的英语可以翻译为：[化] hard water ...

硬水使壶生水垢.Hard water furs the kettle.硬水使水壶生了垢.Hard water furred the kettle.经过加入碳酸钠能被软化的硬水,称为永硬水.Hard water which can be softened by adding sodium carbonate is called permanent hard water....