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
3. He was called back to take bow after bow. 
   他一再出来谢幕。
4. The archer holds the bow in his bow arm. 
   运动员用执弓臂握住弓。
5. An overstrung archery bow. 
   一个上弦过紧的弓

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• 1. 弓形大梁
  bow frame(电车)集电弓支架...bow girder弓形大梁...bow gun装于舰船或装甲车前方的机枪[机炮], 尤指坦克车上的机枪[机炮]
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