rock drift造句

• Application of controlled blasting in drivage of coal - rock drift
  在半煤岩巷道掘进中的应用
• Research on digital analogy of rock - bolt support effect in weak rock drift
  软岩巷道锚杆支护效果的数值模拟研究
• Increasing the blasting delay time in rock drifting so as to decrease the throwing effect
  增大岩巷掘进爆破延迟时间以减少抛掷作用
• The application about anchor cable jetting combined supporting in broken soft rock drift
  锚索喷注联合支护在碎胀软岩巷道掘进中的应用
• Adopting the rhombus cut and the mid - deep - hole smooth blasting technology to realize fast heading in rock drift
  采用直眼菱形掏糟中深孔爆破技术实现岩巷快速掘进
• The deformation and stability mechanisms of pelitic soft rock drift under rich water condition are more complicated than those of the general ones
  摘要富水条件下泥质软岩巷道破坏及稳定性机制比一般软岩巷道更复杂，不仅需要采用多种复合支护控制围岩非线性大变形，还必须进一步控制其泥化进程。