在中长波红外区域，通常使用的镀膜材料都存在相当大的色散和一定的吸收。
The common evaporation coating materials have great dispersion and certain absorption in middle and long wave infrared region.
微机通过接口电路自动控制红外光栅单色仪，对光纤材料进行零色散波长的精确测量。
Microcomputcrs automatically control infrared grating monochrometer through interface circuit, and make a precise measurement of zero dispersion wave length for optical fibre material.
对绝缘体的介电色散理论进行了评述，特别注重于红外和亚毫米波段。
The theory of the dielectric dispersion of insulators is reviewed with special emphasis on the infrared and submillimeter-wave spectral regions.
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