box girder

名词 n.
中文释义

英文释义

名词 n.
  1. A steel beam with a hollow rectangular cross section; used for constructing bridges etc.
    — The Britannia Tubular Bridge is immediately west of Menai Bridge Station on the Holyhead main line. In design it consists of two continuous box girders of rectangular cross section, one for each track. It was opened in 1850.

词形变化

box girders plural
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