| 单词 | river gravel |
| 释义 | > as lemmasriver gravel river gravel n. gravel formed on the bed of a river. ΘΚΠ the world > the earth > structure of the earth > constituent materials > stone > stony material > [noun] > gravel or shingle > gravel > type of flood gravelc1420 river gravel1600 blue metal1699 slither1811 flint-gravel1865 plateau gravel1872 duck-gravel1885 peastone1909 pea gravel1911 1600 R. Surflet tr. C. Estienne & J. Liébault Maison Rustique vi. xiii. 751 The vine shooting out into ouer many branches, must bee cut off verie short, and if for all this it giue not ouer, it must bee barred at the rootes, and riuer grauell laid round about the stocke. 1784 J. Fitzpatrick Ess. Gaol-abuses 53 The best and firmest mortar is prepared of quick lime and sharp river gravel, or bank gravel well washed. 1874 Q. Jrnl. Geol. Soc. 30 229 A careful examination of this very interesting deposit convinces me that we have here preserved portions of an old river-gravel. 1995 This Old House May–June 114/1 First, unscreened, unwashed river gravel was used, weakening the concrete. < as lemmas |
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