During the construction of double-arched tunnel, the role of center pillar is of great importance.

在连拱隧道施工中，中隔墙扮演着至关重要的角色。

youdao

During the construction of double-arched tunnel, the role of center pillar is of great importance.

在连拱隧道施工中，中隔墙扮演着至关重要的角色。

youdao