重点介绍了隧道湿喷钢纤维混凝土的施工技术与质量控制。

And primary emphasis is on the introduction of construction technique and quality control of wet-pipe spray steel fiber concrete in tunnel project.

youdao

重点介绍了隧道湿喷钢纤维混凝土的施工技术与质量控制。

And primary emphasis is on the introduction of construction technique and quality control of wet-pipe spray steel fiber concrete in tunnel project.

youdao