“蓟县群”的概念、定义、翻译、参考文献-科学参考

单词	蓟县群
释义	蓟县群 Encyclopedia 理学蓟县群释 Jixian Group蓟县群华北燕山地区长城群和南口群之上、青白口群之下的以页岩和白云岩为主的中元古代地层。
随便看	sources of international economic law sources of law sources of private international law Sources of the Self：The Making of Modern Identity Sources of Words source strength source structure source subtraction source survey source synchronization clocking source synchronization system source system source term source text source to sink system source to source transformation source tracing source-tracing of pathogen source tracing of pollutants source-type solution source type solutions source-type solutions sourdine sour flavoured herbs sour gas well string

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。