concrete box

• 混凝土箱

concrete box的用法和样例：

例句

1. 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。
2. Binzhou Yellow River Bridge is a three-tower cable-stayed bridge with prestressed concrete girders.
   摘要滨州黄河大桥主桥是三塔预应力混凝土斜拉桥，主梁为预应力混凝土箱梁。