| 单词 | v-shaped | 
| 释义 | > as lemmasV-shaped   V-shaped adj. spec. designating or pertaining to a valley having such a cross-section, esp. when contrasted with a U-shaped valley. ΘΠ the world > space > shape > angularity > specific angular shape > 			[adjective]		 > resembling specific letter tee1819 V-shaped1835 V-d1881 ypsiliform1886 veed1934 the world > the earth > land > landscape > low land > valley > 			[adjective]		 > other types subsidiary1826 V-shaped1835 diaclinal1874 anaclinal1875 antecedent1875 cataclinal1875 consequent1875 superimposed1875 epigenetic1888 subsequent1889 insequent1897 oversteepened1900 re-entrant1901 1835–6    Todd's Cycl. Anat. & Physiol. I. 202/1  				A fissure or triangular V-shaped notch. 1843    Penny Cycl. XXV. 423/2  				Tools..generally double-angular or V-shaped. 1872    E. Coues Key to N. Amer. Birds 103  				A V-shaped black mark on side of head. 1894    Jrnl. Geol. 		(Chicago)	 2 350  				Glacial cañons are..U shaped rather than V shaped in cross-profile. 1907    Bull. Geol. Soc. Amer. 18 355  				Downstream from the glacial region the valley ceases to be U-shaped. It becomes narrow and V-shaped, and the terraces die out. 1937    Geogr. Jrnl. 90 60  				The verticality in all the hypsographs at low elevations is explained by the high coastal cliffs and deep V-shaped valleys which prevail. 1970    R. J. Small Study of Landforms i. 6  				On the resultant maps..the forms of valley floors (whether V-shaped, rounded, or flat-bottomed)..[are] shown. < as lemmas  | 
	
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