Concrete uses. In pattern-making, a short segment of a circle used in making a ring, being shifted round on its centre several times in succession…
| 单词 | θ213830 | 
| 释义 | society > occupation and work > equipment > other specific types of equipment > 			[noun]		 > moulds or shaping equipment > part of pattern-making equipment (1)		 sweep1885 Concrete uses. In pattern-making, a short segment of a circle used in making a ring, being shifted round on its centre several times in succession… | 
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