“百万分之--百万分率”概念、定义、翻译-科学时代

单词	百万分之--百万分率
释义	水利水电词汇手册 ppm (parts per million) 百万分率，百万分之
随便看	furring furring tile furrow furrow furrow furrow furrow furrow furrow and ridge tillage furrow application furrow-closing hoe furrow depth furrow drilling furrower furrowing machine furrow irrigation furrowmeter furrow pan furrow planting furrow plastering furrow soil furrow transplanting furs insurance fursultiamine further appointment

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。

ppm (parts per million)