What exactly did the first inventor of air conditioning go through...?

When an earthquake occurs, which is safer—the lower floors or the higher floors? Let's start by exam

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Human Speed Bump – Mechanical ~3.26

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The dumbest animal in the northeast China

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Today's stress-relieving video: An amazing workplace scene! 12.12

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Unboxing video!! – The Mechanical Series~

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Why do CNC engraving machines make seasoned craftsmen both love and hate them?

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Skilled workers create a satisfying work site!

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Those super cool mechanical series of speed bumps~

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The great invention of "human"

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Speed Bump!! Cool Mechanical Series 6.17

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They say diamonds are forever, but they can be burned and broken.

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The amazing workplace of skilled workers!!

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Speed bumps: amazing work by skilled workers.

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A few useful life hacks~

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Let's take a look at the amazing workplace of skilled workers!

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Let's take a look at the amazing workplace of skilled workers together~

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Spoon/fork: If I had known this was a bad factory

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20 common mechanical transmission structures, I'm exhausted

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Let's take a look at some satisfying work scenes! 10.9

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Believe me! Here's a video you're sure to say "fuck off"

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