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单词 ozone shield
释义

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ozone shield
ozone shield n. = ozone layer n.
ΘΚΠ
the world > the earth > weather and the atmosphere > [noun] > specific regions of
upper air1586
upper atmosphere1586
stratosphere1909
troposphere1909
ionosphere1926
ozone layer1927
ozonosphere1933
spray region1949
mesosphere1950
thermosphere1950
turbosphere1951
magnetosphere1959
Van Allen1959
ozone shield1965
plasmasphere1966
ozone1975
1965 Proc. National Acad. Sci. U.S.A. 53 1206 Plants freed oxygen, which accumulated in the atmosphere; and this, in turn, provided the ozone shield which today screens the earth's surface.
1992 N.Y. Times 5 May c1/1 Waste industrial chemicals were weakening the stratospheric ozone shield that protects living things from biologically harmful ultraviolet rays.
extracted from ozonen.
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更新时间:2024/12/24 21:24:07