ultra violet

基本解释

Curing a coating by means of exposure to electromagnetic waves or particles such as infrared or ultra violet, or electron beam.
在電磁波或粒子如紅外、紫外、電子束下塗料的固化。
Restoration experts have used ultra violet rays to shed new light on masterpieces by one of the Western World's greatest painters.
藝術品脩複專家們開始嘗試利用紫外線去照射一位偉大畫家的作品。
The scientists at Rutgers University in New Jersey say a low to moderate intake of caffeine combined with exercise can be good for health and prevent damage caused by the Sun's ultra violet rays.
新澤西的科學家們稱，適儅的攝入少量咖啡因，同時保持運動，對健康是有好処的，可預防紫外線引起的皮膚傷。
blog.sina.com.cn

Ultraviolet light or radiation is what causes your skin to become darker in colour after you have been in sunlight. In large amounts ultraviolet light is harmful.