box Roof Beam

• 箱梁

box Roof Beam的用法和样例：

例句

1. Each succeeding fabricated box is erected on trolleys.
   每段预拼的箱梁安装在小平车上。
2. The paper discussed the procedure and attentions of box beam precast for reference.
   介绍了广州市环城高速公路跨广州大道连续箱梁桥的工程概况。