“集群灭绝”的概念、定义、翻译、参考文献-科学参考

单词	集群灭绝
释义	集群灭绝 Encyclopedia 理学古生态学释 mass extinction集群灭绝在一个相对短暂的地质时期内（通常不足100万年）及一个较广的地理范围内（通常是一个以上的地理大区），整个生态系统的多样性和个体数量出现突然的、异常的、大幅度的下降，甚至是遭受毁灭性的打击。
随便看	constrained Birkhoff system constrained channel constrained closure constrained control system constrained damping layer constrained damping material constrained density functional constrained differential equation constrained element constrained extension constrained family constrained feed constrained game constrained geometry catalyst (CGC) constrained geometry configuration metallocene catalyst constrained geometry metallocene catalyst constrained least squares problem constrained least-squares problem constrained maximization constrained maximum constrained minimization constrained minimum constrained motion constrained optimization constrained optimization method

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