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 chem hardness of water that cannot be removed by boiling as it results mainly from the presence of calcium and magnesium chlorides and sulphates Words nearby permanent hardness permanent, permanent cartilage, Permanent Court of Arbitration, permanent dentition, permanent echo, permanent hardness, permanent health insurance, permanent magnet, permanent mold, permanent press, permanent resident Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
随便看	point of inflection point of no return point of order point of ossification point-of-purchase point of sale point-of-sale terminal point of view point out point pleasant point reyes lilac point-set point shaving pointsman point source point spread points system point success point system point-system test types point the finger at point tiré point-to-point point up pointwise

英语词典包含192737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。

permanent hardness