標(biāo)題: ASTM E 2177-2001 標(biāo)準(zhǔn)潮濕條件下路面標(biāo)記反射亮度系數(shù)測量... [打印本頁] 作者: 兌水 時間: 2009-11-17 14:17 標(biāo)題: ASTM E 2177-2001 標(biāo)準(zhǔn)潮濕條件下路面標(biāo)記反射亮度系數(shù)測量... E2177-01 Standard Test Method for Measuring the Coefficient of Retroreflected Luminance (RL) of Pavement Markings in a Standard Condition of Wetness
