“ozone depletion”的概念、定义、翻译、参考文献-科学参考

单词	ozone depletion
释义	ozone depletion Encyclopedia 理学〔中层大气化学〕释 ozone depletion臭氧层损耗指20世纪70年代末以来观察到的两个臭氧总量下降的现象。一是地球大气臭氧总量（主要是臭氧层）平稳下降约4%；二是极地平流层臭氧春季大幅下降，后者被称为臭氧洞。除了上述平流层现象外，春季极地对流层中也存在臭氧损耗现象。
随便看	first category set first cementing interface first characteristic polynomial first Chern class First Child-Birth Ceremony first-class current First Collection of Rare Books from Complete Library of Four Treasuries First Collection of Writings on Heavenly Learning first collision probability first-come first-served first comparison test first compilation first complementary law first component first condensate first contact first cosine formula first cosmic velocity first countability axiom first countable space first countable topology first Cousin problem first criminal trial first critical magnetic field first curvature

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