| 单词 | slab avalanche |
| 释义 | > as lemmasslab avalanche slab avalanche n. an avalanche in which a sheet of snow breaks cleanly away along a fracture line. ΘΚΠ the world > the earth > weather and the atmosphere > weather > precipitation or atmospheric moisture > snow > [noun] > rush of loose or melting snow > avalanche valanche1766 avalanche1771 lavange1806 ice bolt1815 lauwine1818 vollenge1830 snow slide1841 slab avalanche1953 1920 A. Lunn in G. W. Young Mountain Craft ix. 431 The wind-slab is the most treacherous of all avalanches. 1936 G. Seligman Snow Struct. vii. 160 If this ‘slab’ of snow has formed on a steep slope it will shatter into countless blocks of hardened snow, and these, sliding downhill, will precipitate the most insidious of all avalanches—the wind-slab avalanche.] 1953 Avalanche Handbk. (U.S. Dept. Agric. Forest Service) iv. 34 (caption) Major slab-avalanche. Depth of fracture: 10 feet. 1978 C. Fraser Avalanches & Snow Safety v. 79 Criterion 1 is the form of break which started the avalanche and this leads to the broad division of all avalanches into two types: ‘loose-snow avalanches’..and ‘slab avalanches’. < as lemmas |
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