A quick科普: What’s a 3-position safety switch, aka a 3-position grip switch…?

Congratulations! You've invented "The Courtyard" all over again!

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Dice CNC Machining

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If time could go back, which year would you most like to go back to?

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You've never seen friction welding so perfect

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Juice Se-yeon 20230317 POP!

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Thanks, master, you really have a wild imagination! It's better to have a clever mind than just brut

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Family members, come and vote for Diyue Weibo!!!

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Water will flow uphill

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Sculpture is an art

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The wisdom of the working people is unparalleled.

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The wisdom of the working people—promise me you'll learn it!

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

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Car Disassembly Video

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The Versatile Excavator

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Check out this new drilling machine

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Compressing and Processing Used Aluminum Cans

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Gear latch process principle

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The Production Process of Cement Circular Pipes

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A lock with hidden secrets

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(Wangxian) The punishment for being a popular prime minister begins Episode 11 A sweet and happy cou

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