approach viaduct

• 高架引桥,引道高架桥

approach viaduct的用法和样例：

例句

1. If viaduct approach spans are considered then perhaps the approach piers could be used to anchor the backstays.
   如果设计中考虑高架引桥，则引桥的桥墩可用来锚定后拉索。
2. The design of formwork for Hau Hoi Wan Elevated Approach Bridge,Hongkong-Shenzhen Western Corridor is presented.
   介绍港深西部通道后海湾高架引桥的模具设计。