-
同时,提出改进的双孔隧道中间岩柱稳定安全系数计算方法。
Moreover, it is proposed that the improved method for calculating the safety factor of middle rock pillar is reasonable.
youdao
-
同时,提出改进的双孔隧道中间岩柱稳定安全系数计算方法。
Moreover, it is proposed that the improved method for calculating the safety factor of middle rock pillar is reasonable.
youdao