兑水 发表于 2009-10-23 15:21:29

ASTM D 6347-2005 用核反向散射深度密度法检测煤的堆密度的试...

D6347/D6347M-99 Standard Test Method for Determination of Bulk Density of Coal Using Nuclear Backscatter Depth Density Methods
页: [1]
查看完整版本: ASTM D 6347-2005 用核反向散射深度密度法检测煤的堆密度的试...