兑水 发表于 2009-10-13 21:07:28

ASTM D 4971-2002 使用径向负荷加重76mm(3in)空心插座测定...

D4971-02 Standard Test Method for Determining the In Situ Modulus of Deformation of Rock Using the Diametrically Loaded 76-mm (3-in.) Borehole Jack
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