路堑石方爆破 rock cutting blasting; rock blasting in cut 定向爆破 directional blasting ..
双语例句
1
The application of ribbon charge (placed in tunnel)in twin slope - cut chamberblasting can weaken the damage to slope rock from blasting.
在双路堑洞室爆破中应用条形药包可以减少爆破对边坡岩体的损伤。
2
It is found that the staged cut with duplex-square has the best blasting effect in trial shafts sinking. This experimental result is analyzed with the existing achievements of rock dynamics.