*[i'misiv]\na. 发射的, 放射性的

我们的余弦校正器可与光纤和光谱仪连接，用于相对光谱强度和绝对光谱强度测量、发射光谱测量，以及对LED光源和激光光源进行评价。

vacuum tube, support for emissive material

monochromatic emissive power

photo-emissive cathode, secondary emission cathode

discharge tube, photoelectric with photo-emissive cathode

emissive helium-plasma detector

secondary emissive materials discharge tube

vacuum tube, insulating layer located between heater and emissive material

monochromatic emissive power