Ozone depletion
volume
British pronunciation/ˈəʊzəʊn dɪplˈiːʃən/
American pronunciation/ˈoʊzoʊn dɪplˈiːʃən/

"ozone depletion"的定义和意义

Ozone depletion
01

the gradual thinning of the Earth's ozone layer caused by harmful chemicals

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