When foreigners invent triangle tire bicycles, the principle is exquisite and they are too happy to ride.

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Life When foreigners invent triangle tire bicycles, the principle is exquisite and they are too happy to ride.
2019-05-16 16:37:43 ·
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The principle of the triangle tire bicycle invented by foreigners is exquisite. Besides running, the most important thing is pulling the wind, and the turnaround rate is 100%.
Tags：Triangle tire, scientific and technological invention, pull-wind bicycle
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