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box girder的英文翻譯是什麼意思，詞典釋義與在線翻譯：
英英釋義
Noun:
-
a beam built up from boards; has a hollow rectangular cross section
box girder的用法和樣例：
例句
- The successful alternative was the cast-in-place segmental prestressed concrete box girder.
最後採用的方案是分段現澆的預應力混凝土箱形梁。 - It is provided with a telescopic bracket.The box beam at the external side of the telescopic part of the bracket is inserted into the square hole in the main beam.
其中，拖架具有可伸縮功能，是通過可伸縮部分外側的箱形梁插入貨台主梁的方孔中，選擇箱形樑上孔的位置來實現的。
