| 单词 | key beam |
| 释义 | > as lemmaskey beam key beam n. ΚΠ 1849 Gen. Descr. Britannia & Conway Tubular Bridges 27 These key-beams are each twenty-four feet long by four feet high, and weigh eleven tons. 1865 R. Hunt Pop. Romances West of Eng. (1st Ser.) 107 They were playing all sorts of pranks on the key-beams and rafters. 2009 C. Kostick Siege of Jerusalem 21 The key beams were dislodged from their bindings and the entire structure collapsed. < as lemmas |
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