light spectrum transmittance 光透射系数
spectrum of transmittance 透射率谱
Derivative spectrum of transmittance 透光率导数光谱
UV transmittance spectrum UV光谱测试
infrared transmittance spectrum 红外透射谱
The average transmittance of the coatings in visible light spectrum is up to 75%, and 73% in infrared region, which can provide effective insulation for heat radiation.
光谱分析证实其在可见光区平均透过率可达75 % ，在红外区阻隔率达到73% ，能对热辐射起到有效的阻隔作用。
Normally the spectrum is given as a function of transmittance, the quotient of the intensity of the transmitted radiation and the incident radiation.
在测量范围内可以产生单色辐射光学系统的分光光度计也可以使用。通常光谱是透光度（透射光强度与入射光强度之商）的函数。
The relationship between the transmittance and leaching effect of the glasses was discussed by measuring UV VIS NIR spectrum.
用光谱仪测定多孔玻璃的紫外可见近红外光谱，对光谱透过率与浸析效果之间的关系作了定性分析。
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