“蓟县系”的概念、定义、翻译、参考文献-科学参考

单词	蓟县系
释义	蓟县系 Encyclopedia 理学蓟县系释 Jixianian System蓟县系中元古代蓟县纪（距今16亿～14亿年）这一时期形成的地层。
随便看	Pollutant Discharge Calculation Pollutant Discharge Coefficient pollutant discharge coefficient in animal production pollutant discharge permit management system Pollutant emission factors pollutant emission factors pollutant form pollutant from chemical fertilizer pollutant from of irrigating water source pollutant from organic fertilizer Pollutant Generation Coefficient pollutant generation coefficient in animal production pollutant migration pollutant of water body pollutant release pollutant removal efficiency Pollutant Separation Technology pollutants from sluge Pollutants in Military Operational environment pollutants in water Pollutant source apportionment pollutant source apportionment pollutant toxicity identification evaluation pollutant transformation pollutant transport model

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。