deck girder

例句：

1. 1.The deck girder is the main support for the ship's deck.
   甲板梁是船的甲板的主要支撑。
2. 2.The deck girder was damaged during the storm.
   风暴期间，甲板梁受损了。
3. 3.The deck girder was reinforced with steel to improve its strength.
   为了增强强度，甲板梁被加固了。