单词 | ozone hole |
释义 | > as lemmasozone hole ozone hole n. a region of the ozone layer in which the ozone concentration is substantially depleted, occurring chiefly at high latitudes and attributed to the chemical action of CFCs and other atmospheric pollutants. ΘΚΠ the world > the earth > weather and the atmosphere > [noun] > specific regions of > specific region of ozonosphere ozone hole1986 1986 Sci. News (Nexis) 1 Mar. 133/1 (heading) Ozone hole at southern pole. 1990 Earth Matters Spring 9/1 Over 80 governments are already committed to phasing out CFCs by the year 2000... It is unlikely that the Antarctic ozone hole will be eliminated. 2001 S. Roaf et al. Ecohouse (2002) vi. 129 The occurrence of the ozone holes over the Arctic and the Antarctic means that below the holes radiation levels are higher. < as lemmas |
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