標(biāo)題: ASTM C 747-1993 用音響共振法測(cè)定炭精和石墨的彈性模量與... [打印本頁(yè)] 作者: 兌水 時(shí)間: 2009-9-18 18:09 標(biāo)題: ASTM C 747-1993 用音響共振法測(cè)定炭精和石墨的彈性模量與... C747-93(1998) Standard Test Method for Moduli of Elasticity and Fundamental Frequencies of Carbon and Graphite Materials by Sonic Resonance