diffuse reflectance的用法和樣例：
例句
- The spectr al reflectance of each test specimen is measured in situ before and after exp osures.
在輻照前後對每一個試樣的光譜反射係數進行了原位測量。 - Self-similarity of the frequency spectra of fractal photonic crystals is studied.The optical transmission matrix method is used to calculate transmittance and reflectance.
摘要研究了分形康托結構光子晶體頻譜的自相似特性，用光傳輸矩陣方法計算光的傳輸和反射係數。
