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单词 snow-line
释义

snow-linen.

Forms: Also snowline.
Etymology: < snow n.1 Compare German schneelinie, Swedish snölinie.
1. The general level on mountains, etc., above which the snow never completely disappears; the lower limit of perpetual snow, or (more rarely) of snow at a particular season.
ΘΚΠ
the world > the earth > land > landscape > high land > mountain > [noun] > range > snow limit
snow-line1835
1835 C. F. Partington Brit. Cycl. Arts & Sci. II. 712/2 The snow-line, or plane of perpetual snow, is the elevation at which mountains are covered with perpetual snow.
1839 C. Darwin in R. Fitzroy & C. Darwin Narr. Surv. Voy. H.M.S. Adventure & Beagle III. xiii. 280 In Tierra del Fuego the snow-line descends very low, and the mountain sides are abrupt; therefore we might expect to find glaciers extending far down their flanks.
1875 J. Croll Climate & Time ii. 28 If those currents were warm, they would elevate the snow-line above themselves.
figurative.1848 P. J. Bailey Festus (ed. 3) 336 My thought of thee Above all passionate fire-peaks and above The sacred snowline of my heart.1902 Westm. Gaz. 20 Dec. 2/2 Mr. Haldane..viewing men and things from above his snow-line.
2. (See quot. 1898.)
ΚΠ
1898 E. E. Morris Austral Eng. 425 In pastoralists' language of New Zealand, ‘above the snow-line’ is land covered by snow in winter, but free in summer.
This entry has not yet been fully updated (first published 1913; most recently modified version published online December 2020).
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n.1835
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