| 单词 | rough coat | 
| 释义 | > as lemmasrough coat   rough coat  n. the first coat of plaster applied to a wall or other surface. ΘΚΠ society > occupation and work > industry > building or constructing > surfacing or cladding > 			[noun]		 > bricklaying and plastering > plastering > plastering with first coat > first coat first coat?1600 rendering1659 rough coat1791 render1833 scratch-coat1891 1791    W. Newton in  tr.  Vitruvius Archit. II. iii. 158/1 		(note)	  				This first rough coat of plaster is called by Vitruvius trullisatio, from trulla, trowel. 1807    T. Young Course Lect. Nat. Philos. I. x. 96  				When a wall..is painted in fresco, the rough coat of plaster is covered with a coat of fine sand and lime. 1875    E. H. Knight Amer. Mech. Dict. III. 1993/2  				Rough-coat,..the first coat on lath. On brick it is termed laying..; on masonry, rendering. 1903    G. P. Grimsley Gypsum of Michigan xiii. 209  				The rough coat must be thoroughly dry before the second or brown coat is applied. 1934    Amer. Home July 74/1  				For the ceiling between the beams, white plaster was mixed with a little lampblack and put on in one rough coat. 2006    M. D. Gottsegen Painter's Handbk.  ii. 258/1  				Build the rough coat to a thickness of about 6mm. < as lemmas | 
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