| 单词 | box beam |
| 释义 | > as lemmasbox beam box beam n. a structural beam with a hollow rectangular cross-section, typically made of iron or steel. ΚΠ 1854 Artizan Apr. 83/1 At first the box-beam..was considered superior to the flat beam. 1948 Steel 3 May 93/1 Using the box beam, a form that is made of two like angles, the designer is assured good structural strength from any load angle. 2004 APT Bull. 35 5/1 Multiple-span truss bridges crossing the wider rivers are quickly being replaced by modern steel box beams and girders or precast, prestressed concrete beams. < as lemmas |
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