Spitzer is tuned to pick up infra-red radiation—the sort of radiation emitted by dust that has been heated.(斯匹策紅用來分離紅外線，這是被加熱過后的塵埃所放射出的一種射線。)

Stars and planets form within swirling clouds of dust and gas that visible light cannot penetrate, but which infra-red radiation can.(那些漩渦狀的塵埃氣體云是恒星和行星誕生的搖籃，雖然可見光無法穿透其間，但是紅外光卻可以做到。)

In the case of lidar, the waves are in the form of an infra-red laser beam.(至于激光雷達，電磁波是以紅外激光束的形式發射的。)

The idea is that when a mosquito encounters the infra-red curtain, its senses are overwhelmed and it flies away.(這個設計的理念是當蚊子碰到紅外線簾子的時候，它的感官被擾亂，隨后就飛走了。)

That changed in the early 1960s, when Nick Holonyak, a researcher at General Electric, first learned that semiconductors could generate infra-red light.(直到19實際60年代才有了改觀，那時通用電氣的一個研究員NickHolonyak第一次發現半導體可以發出紅外線。)

Once a week, Anna and Lucy take advantage of infra-red saunas, microdermabrasion and skin peels to maintain the mirror image.(安娜和露西每周做一次紅外線汗蒸浴、微晶換膚以及磨皮來維持一模一樣的形象。)

Intrusion detection - Active infra-red detectors - Specific standard.(侵入檢測。主動式紅外線檢測器。專用標準。)

Small drones are being developed with highly efficient wing-bottom infra-red cells that scavenge radiation energy reflected up from the ground.(有人正在研制一種小型無人機，機翼底部設有高效紅外電池，能夠捕捉地面反射的輻射能。)

Elsewhere, agents have access to mobile lighting units, as well as hand-held infra-red cameras akin to night-vision goggles.(在其他地方，特工人員則擁有移動照明設備，類似夜視鏡的便攜式紅外線相機。)

But there is a lot of infra-red in the spectrum, so it seems silly to ignore it.(然而太陽光譜中有大量的紅外線，如不加以利用未免有些愚蠢。)