单词 | industrial diamond |
释义 | > as lemmasindustrial diamond industrial diamond n. an inferior diamond, not of gem quality and usually small in size, of a type used in abrasives and in tools for cutting, grinding, and drilling. ΚΠ 1890 North-eastern Daily Gaz. (Middlesbrough) 21 Apr. A very large ‘industrial diamond’ was recently brought from Brazil to New York... This kind of diamond is..used to tip the drills employed in boring rock. 1956 I. Fleming Diamonds are Forever ii. 22 M pushed over a packet of smaller stones, all flawed or marked or of poor colour. ‘Industrial diamonds. Not what they call “gem quality”.’ 2004 Tool & Machinery Catal. 2005 (Axminster Power Tool Centre Ltd.) xvi. 35/2 An industrial diamond embedded in a round steel bar for the rapid dressing, reshaping or deglazing of all types of grind stones. < as lemmas |
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