例句與造句

1. road equipment . temporary marking visualization . colorimetric and photometric characteristics of fluorescent and or retroreflective materials
   道路設備.臨時信號標志清晰度.熒光材料和反射材料的色度特性和光度特性
2. It's difficult to find retroreflective material in a sentence. 用retroreflective material造句挺難的