兑水 发表于 2009-11-17 14:17:04

ASTM E 2177-2001 标准潮湿条件下路面标记反射亮度系数测量...

E2177-01 Standard Test Method for Measuring the Coefficient of Retroreflected Luminance (RL) of Pavement Markings in a Standard Condition of Wetness
页: [1]
查看完整版本: ASTM E 2177-2001 标准潮湿条件下路面标记反射亮度系数测量...