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stratospheric ozone depletion
oil	平流层臭氧耗竭
stratospheric ozone depletion Damage of the ozone shield by chemicals released on Earth. The main chemicals that are depleting stratospheric ozone are chlorofluorocarbons (CFCs), which are used in refrigerators, aerosols, and as cleaners in many industries, and halons which are used in fire extinguishers. The damage is caused when these chemicals release highly reactive forms of chlorine and bromine
environ.	臭氧层破坏 (地球上释放的化学物质对臭氧层的破坏。而消耗平流层臭氧的主要化学品是含氯氟烃(CFC)，它多用于冰箱，气雾剂，并在很多行业用于清洁剂，灭火器等。当这些化学物质释放的氯和溴的呈高活性形式时，便会造成的损害。)