在测量目标的红外辐射特性时，测量路径上的大气衰减是影响测量精度的一个重要因素。
In the measurement of infrared radiation characteristics of an object, the atmospheric attenuation in the measuring path is an important factor which has influence on measurement precision.
在红外制导系统中，大气衰减作用对红外探测有重要影响。
In an infrared guidance system, the atmosphere attenuation has an significant influence on infrared detection.
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