"Energy-saving ticket machine" by School Innovation Awards subway ticket gates will be able to power a turn

LONDON October 26 news: According to the "Evening News" report, to go through the gates every machine you ever thought that when you push the "three roller gates" of the moment, and perhaps also generating it, a small ticket machine bears much green dream! This wonderful idea came from a group of Shanghai Jiaotong University students, the day before yesterday, they ..."Energy-saving ticket machine" by School Innovation Awards subway ticket gates will be able to power a turn