“背景灭绝”的概念、定义、翻译、参考文献-科学参考

单词	背景灭绝
释义	背景灭绝 Encyclopedia 理学古生态学释 background extinction背景灭绝生物在其自身演化发展过程中，正常条件下发生的灭绝。又称正常灭绝。理学背景灭绝释 background extinction；normal extinction背景灭绝地质历程中生物由于自身的原因在正常环境状况下的完全灭亡的现象。又称正常灭绝。
随便看	aircraft look-down angle aircraft low temperature test aircraft maintenance aircraft maintenance area aircraft maintenance equipment aircraft maintenance institution aircraft maintenance speciality aircraft manufacturing technology aircraft material allowable test aircraft material properties test aircraft material test aircraft materiel overhaul aircraft materiel supportability aircraft measurement of mass properties aircraft measurement of moment inertia aircraft mechanical actuation mechanism aircraft micro-actuation system aircraft movement area reference code Aircraft NDT（Non-destructive Testing） aircraft noise reduction Aircraft noise tests in wind tunnel aircraft nose aircraft outdoor static infrared radiation signature measurement aircraft outdoor static radar cross section measurement aircraft oxygen breathing system test

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。