英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字，中文词皆可：

安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • Reflectance - Wikipedia
    The reflectance of the surface of a material is its effectiveness in reflecting radiant energy It is the fraction of incident electromagnetic power that is reflected at the boundary
  • REFLECTANCE Definition Meaning - Merriam-Webster
    The meaning of REFLECTANCE is the fraction of the total radiant flux incident upon a surface that is reflected and that varies according to the wavelength distribution of the incident radiation; broadly, nontechnically : reflectivity
  • Reflectance, Reflectivity, and the Solar Reflectance Index
    Reflectance is defined as the ratio of the radiant flux reflected from the surface or body of a material (ф r) to the incident radiant flux (ф i) Reflectance is denoted by ρ (or p)
  • Reflectance – reflectivity, diffuse scattering, hemispherical . . .
    Reflectance is the ratio of the reflected optical power (radiant flux) to the incident optical power on a reflecting object This dimensionless quantity generally depends on the wavelength and direction of the incident light
  • Reflectance | NASA Earthdata
    Reflectance is the amount of light reflected back into space Light colored surfaces, such as ground covered with fresh white snow, reflect a high amount of light striking them and appear bright in satellite imagery
  • Lambertian reflectance - Wikipedia
    While Lambertian reflectance usually refers to the reflection of light by an object, it can be used to refer to the reflection of any wave For example, in ultrasound imaging, "rough" tissues are said to exhibit Lambertian reflectance
  • How to Measure Reflectivity and Reflectance - Engineer Fix
    Reflectance, conversely, is the measured quantity, defined as the ratio of the radiant flux reflected by a specific sample surface to the radiant flux incident upon it
  • What is the difference between reflectivity and reflectance?
    So reflectivity is a measure of the intrinsic reflectance of a material, whereas reflectance takes into account other factors like the thickness of the material and whatever other materials are present behind the surface material
  • What Are the Units of Reflectance? - Engineer Fix
    Reflectance is a ratio of two energy measurements (reflected energy versus incident energy), making it inherently a unitless quantity It is commonly expressed as a decimal fraction ranging from 0 0, representing a perfect absorber, to 1 0, signifying a perfect reflector
  • Reflectance - an overview | ScienceDirect Topics
    In the visible band, the green colour of the leaf is due to peak reflectance at 0 54 μm The presence of chlorophyll is responsible for very low reflectance (10-30%) in red and blue bands Some middle infrared (MIR) bands are absorbed by water vapour





中文字典-英文字典  2005-2009