| 单词 | safety beam |
| 释义 | > as lemmassafety beam safety beam n. ΚΠ 1834 Jrnl. Franklin Inst. Dec. 386 Mr. Kite proposes to effect, by introducing in each car, two longitudinal pieces of timber, (which he calls safety beams), inside of the wheels. 1993 San Francisco Chron. (Nexis) 25 Oct. a18 They could see the..wooden safety beams that were placed..across the large stained-glass windows. < as lemmas |
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