“permanent hardness”的概念、定义、翻译、参考文献-科学参考

单词	permanent hardness
释义	permanent hardness Chemistry See hardness of water.
随便看	dry battery dry bulb temperature dry-bulb thermometer dry cell dry continental morphoclimatic zone Dryden Flight Research Center dryer dry etching dry farming dry ice drying drying oil drying rate dry joint dry mass dry melt dryness Dryopithecus dry process dry run dry scrubbing dry season dry snow zone dry valley dry-weather flow

科学参考收录了60776条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。