A material consisting of coarse sand and water-worn stones of various sizes, often with a slight intermixture of clay, much used for laying roads…
| 单词 | θ214868 |
| 释义 | society > occupation and work > materials > raw material > stone or rock > [noun] > gravel, small, or broken stones (7) gravel?a1366 A material consisting of coarse sand and water-worn stones of various sizes, often with a slight intermixture of clay, much used for laying roads… road drift1789 a substance consisting of sand, dung, etc., scraped from the surface of a road and used esp. in making mortar, or as fertilizer; cf. road dust n., roa… hoggin1793 Finely sifted or screened gravel; (now chiefly) a material consisting of a mixture of sand, gravel, and clay. Subcategories:— in gold or diamond washing (1) — used as bed of railways (2) — forming material of dam (1) |
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