“ecological defence”的概念、定义、翻译、参考文献-科学参考

单词	ecological defence
释义	ecological defence Encyclopedia 理学生态屏障释 ecological defence生态屏障处于某一特定区域，具备完善的生态系统结构、过程与功能，能有效保障区域内外乃至国家生态安全的复合生态系统。
随便看	frequency shift theorem frequency-shift track circuit frequency-size distribution frequency spectrum frequency stability frequency stability criterion frequency stability measurement frequency stabilization frequency stabilized laser frequency standard frequency standards frequency step frequency sweep mode frequency swept laser frequency switching frequency synchronization frequency synthesis frequency synthesized signal generator frequency synthesizer frequency table frequency theorem frequency theory frequency theory of probability frequency thermometer frequency transition

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。