infrared low frequency

基本解释

These include enhanced emission of infrared (IR) radiation from the earthquake epicentre, as well as anomalies in low-frequency electric and magnetic
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。
The low-power infrared lasers, which operate in an unlicensed electromagnetic-frequency band, either are or can be made to operate in an eye-safe manner.
低功率红外线雷射是在毋需执照的电磁频带运作，而且不会对眼睛造成伤害，或者说，可以设计成对眼睛不具伤害性。
A detailed study of the infrared detector types and production of low-frequency noise mechanism is to build a variety of low-frequency noise physical model;
详细研究了红外探测器低频噪声种类及产生机理，建立了该类元件各种低频噪声物理模型；