“primary pollutant”的概念、定义、翻译、参考文献-科学参考

单词	primary pollutant
释义	primary pollutant Encyclopedia 工学一次污染物释 primary pollutant一次污染物由污染源直接排入环境的、其物理和化学性状未发生变化的污染物。又称原发性污染物。 Chemistry ＞环境化学＞大气环境化学＞释义 primary pollutant一次污染物
随便看	friction drag, fractional drag friction drive friction effect friction factor frictionfactor friction feed friction force friction force microscopy friction heat friction heat, fractional heat friction hoist friction initiation friction layer frictionless flow friction loss friction materials frictionmeter friction of metal working friction pairs friction pile friction reducing for gas transmission pipeline friction reduction stabilizer friction roller friction spinning friction spinning machine

科学参考收录了854744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。