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单词 i-beam
释义

WordReference Random House Unabridged Dictionary of American English © 2024
I-beam  bēm′),USA pronunciation n. 
  1. Buildinga rolled or extruded metal beam having a cross section resembling an I. See illus. under shape. 
  • 1890–95

Collins Concise English Dictionary © HarperCollins Publishers::
I-beam n
  1. a rolled steel joist or a girder with a cross section in the form of a capital letter I
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更新时间:2024/9/22 14:25:18