標題: ASTM E 2302-2003 用便攜式反射計測定在漫射照明下公路標記材... [打印本頁] 作者: 兌水 時間: 2009-11-17 20:49 標題: ASTM E 2302-2003 用便攜式反射計測定在漫射照明下公路標記材... E2302-03a Standard Test Method for Measurement of the Luminance Coefficient Under Diffuse Illumination of Pavement Marking Materials Using a Portable Reflectometer