英语词汇“permanent hardness”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	permanent hardness
释义	permanent hardness noun [mass noun] The presence in water of mineral salts (chiefly calcium sulphate) that are not removed by boiling.
随便看	head lobe headlock headlong headlongly headlongness head louse head-lugged head-maker headman headmark headmaster headmasterdom headmasterly headmastership head matter head metal headmistress headmistress-ship headmistressy head mold head molding head-mold-shot head money headmost head mould

英语词典包含243303条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。