道路拓宽 meaning in English

road widening

Depend on the precise blast design with small error and strictly controlling the explosive consumption , they controll blasting construction for rock availably , complete the excavation for rock cuttings of broaden and rebuilding project for city roads successfully , and obtain well social benefit and economical benefit
通过续密的微差爆破设计，严格控制装药量，有效地控制了岩石爆破施工，成功地完成了城市道路拓宽工程的岩石路堑边坡开挖工程。