到2048年，极地地区外的臭氧层将恢复到1980年以前的水平，但每年春季出现的南极臭氧层空洞要在2073年才能得到恢复。
The ozone layer outside the polar regions is projected to recover to pre-1980 levels by 2048, although the annual springtime ozone hole over the Antarctic is not expected to recover until 2073.
每逢南半球春季，南极洲平流层中都会出现不祥的臭氧层空洞。
Every austral spring, an ominous "hole" appears in stratospheric ozone over Antarctica.
监测南极上方臭氧层空洞的大小是一件重要的事，因为它是全球紫外线辐射水平的一个指示器。
An important thing is monitoring the size of the hole in the zone layer above Antarctica, since this is an indicator of global ultra-violet radiation levels.
尽管每年春季出现在南极洲上空的臭氧空洞预计要到2073年才能恢复，但是极地以外地区的臭氧层预计到2048年就可以恢复到1980年以前的水平。
The ozone layer outside the polar regions is projected to recover to pre-1980 levels by 2048, although the annual springtime ozone hole over the Antarctic is not expected to recover until 2073.
尽管每年春季出现在南极洲上空的臭氧空洞预计要到2073年才能恢复，但是极地以外地区的臭氧层预计到2048年就可以恢复到1980年以前的水平。
Thee ozone layer outside the polar regions is projected to recover to pre-1980 levels by 2048, although the annual springtime ozone hole over the Antarctic is not expected to recover until 2073.
资料图片：这幅由美国航空航天局提供的影像中，南极上空的臭氧层空洞就像一个巨大的蓝色水滴。
Photo information: the site by NASA to provide images of the ozone hole over Antarctica is like an enormous blue water.
臭氧空洞是指臭氧层中季节性消耗保护性气体的一个区域，例如著名的南极上空的臭氧空洞。
An ozone hole is an area of the ozone layer that is seasonally depleted of the protective gas-such as the well-known hole over Antarctica.
臭氧空洞是指臭氧层中季节性消耗保护性气体的一个区域，例如著名的南极上空的臭氧空洞。
An ozone hole is an area of the ozone layer that is seasonally depleted of the protective gas-such as the well-known hole over Antarctica.
应用推荐