单词：box girder
box girder的用法和样例：
例句
- The successful alternative was the cast-in-place segmental prestressed concrete box girder.最后采用的方案是分段现浇的预应力混凝土箱形梁。
- 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，拖架具有可伸缩功能，是通过可伸缩部分外侧的箱形梁插入货台主梁的方孔中，选择箱形梁上孔的位置来实现的。
- box beam箱形梁,匣形梁,箱形桨...
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