| 单词 | crown beam |
| 释义 | > as lemmascrown beam crown beam n. a transverse beam at the apex of a pair of beams that brace a structure. ΘΚΠ the world > space > relative position > fact or condition of being transverse > [noun] > anything lying transversely > cross-piece, -bar, or -beam slote1485 crossbar1562 bail1575 cross-beam1594 traverse1604 bint1629 cross-yard1634 crown beam1776 cross-tie1813 cross-rail1836 stretcher1844 spall1895 1776 G. Semple Treat. Building in Water 4 The Crown-Beams..projected from three to five Feet. 1828 Reg. Pennsylvania 19 July 6/2 Each rib is made to consist of two rafters and a crown beam. 1950 Pop. Sci. July 215/2 Crown beams fit over steel pins. 2011 P. Schmidt et al. Compl. Guide to Greenhouses 84/1 The ends of the crown beams rest on the outer edge of the corner bracket. < as lemmas |
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