gird·er 
(gûrdər)
(gûrdər)n.
A beam, as of steel, wood, or reinforced concrete, used as a main horizontal support in a building or bridge.
| 单词 | girder |
| 释义 | gird·er (gûrdər)n. A beam, as of steel, wood, or reinforced concrete, used as a main horizontal support in a building or bridge. |
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