| 单词 | road drift | 
| 释义 | > as lemmasroad drift   road drift  n. now rare 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., road scraping n. (a). ΘΚΠ society > occupation and work > materials > raw material > stone or rock > 			[noun]		 > gravel, small, or broken stones gravel?a1366 road drift1789 hoggin1793 1789    J. Adam Pract. Ess. Agric. I. 195  				Frost coming on, a stratum of chalk is brought, and put over the first layer of dung; or, in its stead, road drift. 1838    Civil Engineer & Architect's Jrnl. 1 222/2  				Road drift..is certainly by no means so good as fine sand. 1861    W. Fairbairn Iron 144  				It is constructed of boiler plates, and lined with fire-brick, road-drift, or ‘ganister’. 1913    P. C. Cowan in  H. P. Boulnois Mod. Roads 		(1919)	 iii. 81  				Making up a slurry, like very thin mortar, in the road channel with sharp sand or old road drift or scrapings containing little soft matter. < as lemmas  | 
	
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