慢速英语视频:New Technology Fights Graffiti in Australia

视频下载[点击右键另存为]
Sensors hidden in the walls of trains recognize the paint and markers these “artists” use. The sensors then tell police. The system is now operating in Sydney, Australia and is helping the city save millions of dollars.
将本页收藏到：
上一篇：慢速英语视频:US Congress Gives President Obama a Powerful Trade Tool
下一篇：慢速英语视频:Oysters Return to New York’s Great South Bay

※相关链接※

• ·哪种语言最难学？外媒做了个排名，
• ·夏日炎炎吃西瓜：西瓜对健康居然有
• ·英语文摘:Xi, Putin to witness op
• ·英语文摘:China hits 400 mln vacc
• ·欧美文化:Feature: UK takes big s