The project of railway switch snow protection system based on the principle of the air umbrella, was the second prize winner of the:

发布于 2021-09-09 11:54:17
A.the First China-US Young Maker Competition
B.the 10th National Competition of Transport Science and Technology for Students
C.the 10th National University Student Social Practice and Science Contest on Energy Saving & Emission Reduction
D.the 6th National Mechanical Innovation Design Competition

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