2026-03-22 06:59 浏览次数 17
路堑
Application of loose pre-shearing blasting technique about deep hole in the construction of deep road chasm
深孔强松动预裂爆破在深路堑开挖中的应用
Blasting design of freeway rock road chasm construction
高速公路石方路堑开挖爆破设计