光面爆破
Sprayed concrete and bolting
smooth blasing
Blasting
Smooth-surface Blasting
mill finish blast
smooth surface blasting
smooth blasting parameter
mining-tunnel
Smooth blastin g
smooth wall blasting
smooth blasting
mill finish blowing up
blast design
smooth explode
perimeter blasting
smooth surface explosion
smokeless coal
precraking blasting
smooth-surfaced blasting
smooth blast
smoothwall blasting
smoth blasting
grain side explosion
smooth demolition
wide-space blasting
光面爆破参数
smooth blasting parameter
光面爆破技术
smooth wall blasting technique
smooth blasting technique
controlled blasting
护壁光面爆破
protecting borehole wall smooth blasting
深孔光面爆破
deep borehole smooth blasting
水压光面爆破
smooth hydraulic blasting
hydraulic pressure smooth blasting
简易光电控制器
Simple photo-electric controller
X射线荧光光光谱
X-ray fluorescence spectrometry
全断面光爆
tolal-section smooth blasting
地面爆破
Hole Blasting from the Surface
blasting on surface