Definition

Examples

• 红外线是光的一种，眼睛看不到。
  hóng wài xiàn shì guāng de yì zhǒng, yǎnjīng kàn bú dào.
  Infrared is a kind of light that the eye cannot see.
• 遥控器使用红外线来传递信号。
  Yáokòngqì shǐyòng hóng wài xiàn lái chuándì xìnhào.
  The remote control uses infrared rays to transmit signals.
• 红外线摄像头可以帮助检查体温。
  hóng wài xiàn shèxiàngtóu kěyǐ bāngzhù jiǎnchá tǐwēn.
  An infrared camera can help check body temperature.