A brief introduction to the smoothwall blasting technique for Zhengyang Tunnel is given and some experience summed up in this paper.
本文对该隧道的光面爆破施工技术作了简单介绍，总结了几点体会。
A brief introduction to the smoothwall blasting technique for Zhengyang Tunnel is given and some experience summed up in this paper.
本文对该隧道的光面爆破施工技术作了简单介绍，总结了几点体会。
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