| 单词 | roof truss |
| 释义 | > as lemmasroof truss roof truss n. ΚΠ 1839 Civil Engineer & Architect's Jrnl. 2 191/1 Roof-trusses may be made entirely of cast-iron. 1875 E. H. Knight Amer. Mech. Dict. III. 1975/1 Roof-truss, the framework of a roof, consisting of thrust and tie pieces. 1964 W. L. Goodman Hist. Woodworking Tools 197 It may be, however, that the original French word fermoir has something to do with the ferme or roof-truss. 2003 Victorian Mar. 28/2 Former school and schoolmaster's house, 1860–62, by William Butterfield, with unusual timber roof trusses. < as lemmas |
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