directional reflectance coefficient 定向反射系数
power reflectance coefficient 功率反射系数
Using this device, we can measure many oceanic optical parameters such as diffuse attenuation coefficient, remote-sensing reflectance, water-leaving radiance and so on.
根据该仪器测量获得的下行辐照度和上行辐亮度，我们可以计算海水的漫衰减系数、遥感反射率、离水辐亮度等多种海洋光学参数。
The results show that the test site has a very good homogeneity with a variation coefficient of the reflectance in any channel lower than 3%.
地表反射率和大气光学特性地面同步测量结果显示：敦煌场地的地面均匀性好，各个通道反射率的变化系数（即相对变化百分比）均小于3%。
To evaluate laser camouflage effectiveness based on laser camouflage principle, three different methods, which were relative reflectance, camouflage range and camouflage coefficient, were put forward.
根据激光隐身原理提出了用相对反射比、隐身距离和隐蔽系数评价激光隐身效果的三种方法，并对各种方法的优点、适用范围及局限性进行了分析。
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