“five methods” of rock piling

1320 Ma basic rock sills

2# rock detonator

2(#) rock ammonium nitrate explosive

2~# rock ammonium nitrate explosive

3-boom hydraulic rock drilling jumbo

3D fractal rock

3-D modeling of rock discontinuity network

a part of rock

a protective layer in excavation of rock foundation

absolute power consumption for rock fragmentation

Abutment rock

abysmal rock

abyssal rock

acausto-phytogenic rock

accumulation of porous surrounding rock

accumulation of rock mass

Accumulation Rock

acid corossion rock

acid igneous rock