Sign up for an Award
Participate with your entry in one of our professional or student awards.Sign up for an award
You are using an outdated browser. Please upgrade your browser to improve your experience.
In transportation complex intersection, to must have traffic light this role.Was waiting for the green light shines that period of time, the intersection will withstand the massive carbon dioxide the emissions and the air pollution.
Using traffic light union air pure machine, will exceed the allowed figure the carbon dioxide inspiration will then dilute, finally will discharge the fresh oxygen to purify the air, will send by the chloroplast concept as the modelling thought,
above leaf surface establishment solar energy board, will not need to use the high energy the electric power, achieved the energy conservation will reduce the carb