ozone hole 臭氧洞
- Unit 101 The Ozone Hole:Why over Antarctica?
臭氧空洞:为什么出现在南极洲上空? - TOMS has been the key instrument for monitoring ozone levels throughout the southern hemisphere since the discovery of the ozone hole in 1985.
自1985年发现臭氧空洞以来,TOMS一直都是监视南半球臭氧层的主要仪器。 - The Arctic also has its own ozone hole, which is not as big as the Antarctic hole, but still poses a threat to people living in the northern hemisphere.
北极也有自己的臭氧洞,并不如南极那麽大,但仍旧对北半球的居民造成威胁。
ozone hole[ noun ]
an area of the ozone layer (near the poles) that is seasonally depleted of ozone
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