蓝烟铁路

蓝烟铁路蓝烟铁路
  1. 本文介绍了蓝烟铁路复线路堑爆破中首次采用的新型、安全、高效的近人爆破方法。

    A new , safe and effective method is introduced , which has been practised on the cutting detonating construction of the Lan Yan double track railway line .