“scratch hardness”概念、定义、翻译-科学时代

单词	scratch hardness
释义	矿业工程技术词汇手册 scratch hardness 刮痕硬度；划痕硬度
随便看	interuniversity sports meet interurban interurban interurban heat supply interval interval interval interval interval interval interval interval interval interval interval interval interval interval interval interval algebra interval analysis interval analysis interval arithmetic interval between marriage and the first birth interval between puberty and marriage

科学时代收录了1160609条科普词条，基本涵盖了常见科普常识及英语词汇的翻译，是科学学习和研究的有利工具。