“unabraded”的英文意思

单词 unabraded 释义 unabraded, ppl. a.(un-1 8.)1827Faraday Chem. Manip. iii. (1842) 72 The learner should practise first on a piece of waste glass tube, commencing both from an unabraded surface and from a cross line.1886Athenum 18 Dec. 830/1 In an area...