兑水 发表于 2009-9-18 18:09:04

ASTM C 747-1993 用音响共振法测定炭精和石墨的弹性模量与...

C747-93(1998) Standard Test Method for Moduli of Elasticity and Fundamental Frequencies of Carbon and Graphite Materials by Sonic Resonance
页: [1]
查看完整版本: ASTM C 747-1993 用音响共振法测定炭精和石墨的弹性模量与...