ultraviolet

释义

• adj. 紫外的；紫外线的
• n. 紫外线辐射，紫外光

词源

ultraviolet (adj.)

"beyond the violet end of the visible spectrum," 1840, from ultra- + violet. Ultra-red (1870) was a former name for what now is called infra-red.

例句

• 1. The container is invisible until you shine an ultraviolet light on it. 那个柜子只有用紫外线照射才可以看见。
• 2. It's called ultraviolet rays. 它被叫做紫外线.
• 3. The ozone layer surrounding the earth protects our skin from being hurt by the ultraviolet rays. 环绕地球的臭氧层保护着我们的皮肤免受紫外线的伤害.
• 4. Ozone is best known for its role in screening the Earth from harmful ultraviolet rays from the Sun. 臭氧最广为人知的作用是保护地球免受太阳紫外线的伤害。
• 5. The sun's ultraviolet rays are responsible for both tanning and burning. 阳光中的紫外线是皮肤晒黑和灼伤的根源。