The warehouse security cameras use infrared to record clearly even after the lights go off.

倉庫的監視器使用紅外線，即使關燈後也能清楚錄影。

Our new thermometers detect infrared, so staff can check visitors' temperatures without touching them.

我們的新型體溫計偵測紅外線，員工不需接觸就能量訪客體溫。

The airport scanner relies on infrared to spot overheating parts in checked luggage.

機場掃描器利用紅外線找出託運行李中過熱的零件。