包括从地震震中传出来的经过加强的红外辐射，以及不正常的低频电磁现场数据。
These include enhanced emission of infrared (IR) radiation from the earthquake epicentre, as well as anomalies in low-frequency electric and magnetic
红外探测器的低频噪声是制约器件能否应用于空间遥感的关键因素之一。
Low frequency noise is one of the most important factors in infrared detectors for space remote sensing applications.
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