| 单词 | quarter-hollow tool |
| 释义 | > as lemmasquarter-hollow tool quarter-hollow n. a concave moulding (moulding n.1 2b) that has an arc which is (approximately) a quarter circle; (also) an engraving tool used to make convex or concave mouldings (more fully quarter-hollow tool). ΚΠ 1847 C. Holtzapffel Turning & Mech. Manip. II. xxiv. 519 Convex mouldings are frequently made by rectilinear tools..but the bead..the astragal..or the quarter hollows..facilitate the process..and enable it to be repeated any number of times with exact uniformity. 1875 E. H. Knight Amer. Mech. Dict. III. 1843/2 Quarter-hollow Tool,..a chisel (c, Fig. 4066) for making convex moldings. 1891 E. H. Knight Pract. Dict. Mech. (new ed.) at Quarter-hollow In arch., etc., a concave molding the arc of which is, or approaches, 90°, or a quadrant: the converse of a quarter-round. 1957 F. S. Meyer Handbk. Ornament 199 The last, as a quarter-hollow forms the transition between fillet and shaft. 1999 J. P. McAleer Rochester Cathedral iv. 65 The southeastern half-Romanesque/half-Gothic pier has a more elaborate base..consisting of two thin rolls above a narrow quarter-hollow. < as lemmas |
| 随便看 |
英语词典包含1132095条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。