Let’s see which line is the fastest—white line?

[Uncle Qiu Takes a Look] The video has been packaged—welcome to check it out!

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Civil engineering graduate student talks to Da Mengzi remotely

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What arrow tips can pierce a heavy riot shield with a 70lb compound bow?

12 Views

Technology changes life.

137 Views

Unboxing video!! The irresistible charm of machinery

32 Views

How a Car Engine Works

87 Views

Creative Lighters

25 Views

The irresistible mechanical series of speed bumps~

23 Views

The follow-up on well drilling at the mountaintop is here

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The skilled workers' satisfying work site~

39 Views

[Hardcore] Experience the "Doomsday Mobile Fortress": A Super-Heavy, Gigantic Luxury RV

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Speed Bump for Boys and Girls: The Skilled Workers Series!!

93 Views

Workflows Across Industries

30 Views

A millennium-old mystery—anyone who understands can step forward and explain it.

61 Views

Speed Bump Mechanical Series! 7.30

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The mesmerizing farm machinery that's like a speed bump for men

274 Views

The irresistible charm of machinery~

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You can't make fire by drilling wood.

16 Views

The brake pads of a 10,000-ton ship are excavators??!!

30 Views

Mechanical Arm Peas

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