20 common mechanical transmission structures, I'm exhausted

The incredible James coupler, a piece of train technology that has lasted for over 100 years. Do you

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Miracle With A4 Papers. Successfully Made A Hidden Crossbow

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(Lin Guoer) Repairing a 1980 Dongfangfen tractor.

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Did what I always wanted to do

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The band "Mudeganqing"'s Let Her Go

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A magical tool that transcends time and space

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How Many People Can Survive Until The End Of This Short Film?

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[SCIENCE]Amazing Science Toys|Mr. Mind Blow

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Made a glider with balsa wood strips and film, and the weight is only 0.42 grams? !

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The axe has started heat treatment. This is the only quenching solution that can achieve the perfect

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[HZK Special Photography] The Fire Rescue Team's All-Mechanical Appearance and Special Kill Collecti

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Which boy can resist such a model scene?

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The domino cycle never stops, just like me moving bricks over and over again

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This is the first time I saw a hydraulic press fail.

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Far more than the average family car? A palm-sized inline four! The whole process of assembly!

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It's my turn to have fun! It's my turn to have fun!

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Simulating the Earth being swallowed by a black hole in an instant

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Homemade egg cracking tool

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How to make coffee

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Remote control truck model, can pull goods and wade through water

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