Light pollution-光污染
[attach]44789[/attach]
[attach]44791[/attach]
Light pollution, also known as photopollution or luminous pollution, is excess or obtrusive light created by humans.[attach]44790[/attach]
Types of Light Pollution:
1.Light trespass-(光入侵)
欢迎光临 世界之窗论坛 (http://bbs.theworld.cn/) | Powered by Discuz! 7.2 |