1. Can glasses prevent ultraviolet ray? 眼镜可以防紫外线吗?
2. What are infrared and ultraviolet rays? 什么是红外线和紫外线?
3. With what medicaments can be ultraviolet allergy treated? 紫外线过敏用什么药物可以治疗?
英英解释
n.
1. radiation lying in the ultraviolet range; wave lengths shorter than light but longer than X rays
2. having or employing wavelengths shorter than light but longer than X-rays; lying outside the visible