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			Blasting Excavation Technology Without Protective Layer on Andesitic Porphyrite Foundation Surface
GENG Pengyu;ZHANG Tengfei;YI Lei;HUANGFU Zehua;WANG Kejian;LUO Shuailing
Yellow River ›› 2020, Vol. 42 ›› Issue (8) : 150-153.
 PDF(1672 KB)
						
							PDF(1672 KB) 
						
						
					 PDF(1672 KB)
						
							PDF(1672 KB) 
						
						
					Blasting Excavation Technology Without Protective Layer on Andesitic Porphyrite Foundation Surface
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