2017 Science and Technology Innovation Achievements for primary and middle school students of Nanjing, Taiwan and Hong Kong was held on August,23rd.
A sixth-grade girl invented an automatic parking device which can automatically provide free parking space for drivers. According to the student, the aim of this invention is to help people save time specially during the traffic jam.
Some students also produced unmanned aerial vehicles through assembly of 3D-printed units.
Senior students made fine wooden products with mortise and tenon joint structure through precise calculation and assembly.
And this mobile phone holder has also obtained a patent, which just has several widgets and two rubber bands.





