PDF(162 KB)
Experimental study on large diameter drilling in hard rock annular coring
Yinzhu WU;Guochun YANG;Wenchen WANG
Global Geology ›› 2008, Vol. 11 ›› Issue (1) : 32-36.
PDF(162 KB)
PDF(162 KB)
Experimental study on large diameter drilling in hard rock annular coring
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