“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	key agreement Ke Yan Keyan Sculpture and Cliffside Sculptures key aspects of pulse manifestation key biodiversity areas key block method keyboard keyboard harmony keyboard layout key cap Key Case Sampling key case study Key chain project management key characteristics of bonds key code key collection key commercial vehicles joint control system key-controlled time signal key control technology key distillation strategy key distribution key distribution center key distribution quantum key district of prevention and control of soil and water loss key drawing

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