reflectance
英 [rɪˈflektəns]
美 [rɪˈflektəns]
n. (光的)反射比
复数：reflectances
BNC.18144 / COCA.34179
牛津词典
noun
- （光的）反射比
a measure of how much light is reflected off a surface, considered as a part of the total light that shines onto it
英英释义
noun
- the fraction of radiant energy that is reflected from a surface
双语例句
- NIR Diffuse Reflectance Spectra Analysis of Forage Components by Factor Analysis
近红外漫反射光谱因子分析法同时测定饲料中水份、粗蛋白和粗脂肪 - Study on the Mechanism of Composite Coating with Low Infrared Emittance and Low Radar Reflectance;
首先，为了选择低红外发射率材料，研究了金属、半导体和电介质的光学性质。 - The surface reflectance is an important parameter controlling surface energy balance.
地表反射率是控制地表能量平衡的一个重要参数。 - They also have a strong influence on surface albedo ( solar energy, absorption and reflectance) and the hydrological cycle.
它们还对地表反照率（太阳能的吸收和反射）与水文循环有很强的影响。 - A serious drawback is that the diffuser's reflectance may change with time.
这一方法的严重缺点是漫射器反射比随时间变化。 - Sky radiance might be influenced by the multiple reflectance between the earth's albedo surface and the atmosphere.
天空亮度可能受到地表与大气之间的多次反射的影响。 - Exposure ratios between spectral bands are determined from in situ reflectance spectra of objects in scene.
光谱波段之间的曝光量比值，可以根据景物中目标的就地测定的反射光谱确定。 - The spectral reflectance of each test specimen is measured in situ before and after exposures.
在辐照前后对每一个试样的光谱反射系数进行了原位测量。 - Bidirectional reflectance distribution function ( BRDF) is an important reflective parameter of object surface.
双向反射分布函数（BRDF）是材料表面光学反射性能的重要指标。 - Bidirectional reflectance distribution function ( BRDF) can be used to study the laser scattering properties of target surface.
为了研究目标表面的激光散射特性可以利用双向反射分布函数的方法。