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单词 river terrace
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river terrace
river terrace n. Physical Geography each of a series of raised terraces alongside a river that are the remnants of former flood plains, river beds, etc., formed during earlier periods of erosion and deposition.
ΚΠ
1825 Edinb. Philos. Jrnl. 12 318 Neither, I believe, are there any other lacustrine terraces in Scotland, but those just mentioned, although river terraces are very common.
1908 Amer. Jrnl. Sci. 175 108 The river terraces of outwash gravel.
1969 G. M. Bennison & A. E. Wright Geol. Hist. Brit. Isles vi. xvi. 366 River terraces..are remnants of former floodplains dissected by the rejuvenation of rivers consequent upon uplift.
1999 National Trust Mag. Spring 35/5 The River Medlock in this area has a stony bed, fair water quality, well-developed meanders, river terraces and steep river cliffs.
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