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	prairie fowl prairie fox prairie goose prairie grass prairie grouse prairie hare prairie hawk prairie hen prairie itch prairie lark prairie lily prairie madness prairie marmot prairie meadow mouse prairie mole prairie mouse prairie owl prairie oyster prairie pea prairie phlox prairie pigeon prairie plough prairie plover prairie plow prairie plum

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。