PDF(260 KB)
Reflections on the Failure of Using Directional Drilling Method to Build Dam Culvert
YU Wei-ran;FU Qiong-hua;MA Xiu-feng
Yellow River ›› 2013, Vol. 35 ›› Issue (8) : 123-125.
PDF(260 KB)
PDF(260 KB)
Reflections on the Failure of Using Directional Drilling Method to Build Dam Culvert
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