1. A steel joist or girder with short flanges and a cross section formed like the letter I. 
   i形金属横梁，工字梁由短翼缘和一个十字部分做成象字母i的钢制托梁或主梁
2. A timber or girder fastened above and parallel to the keel of a ship or boat for additional strength. 
   内龙骨固定在船或舟的龙骨之上或与之平行的木材或桁，以加强船的力量

查看更多例句 相关情景会话

• 1. 承重梁
  28. exterior sheathing...29. spandrel girder 承重梁...30. roof sheathing 屋面板
  xygzgtl.blog.163.com - 相关搜索
• 2. 托梁，承重梁
  solid web girder 　实腹梁...spandrel girder 　托梁，承重梁...steel-concrete composite girder 　钢材混凝土组合梁
  www.waterpub.com.cn - 相关搜索