单词transmittivity
n.: 透射系数
网络: 透射率；透射比率；透过率
透射系数
Increasing the number of periods, the transmittivity is reduced and the reflective spectrum is flatter near the reflective wavelength.
随着光栅周期数的不断增多，其在反射波长处的透射率不断减小，谱线趋于平坦；
Study on crystal growth and transmittivity of large-size KBr
大尺寸KBr晶体生长及光透过性能的研究