Ray,Infrared

《英文msh詞典》Ray,Infrared
[入口詞] Ray,Infrared
[主題詞] Infrared Rays
[英文釋義] That portion of the electromagnetic spectrum usually sensed as heat. Infrared wavelengths are longer than those of visible light,extending into the microwave frequencies. They are used therapeutically as heat,and also to warm food in restaurants.