Why do we cut trees at height? Will there be accidents? #高空伐木 #解压 #科普

A broken log, seamlessly connected with a mortise and tenon structure

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What modifications can be made to an excavator? #PopularScience #Unzip #LargeMachinery #Excavator

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Rolling shutter on-site construction and production

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Spent 26 hours polishing a bronze mirror to restore it into a genuine copper mirror!

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Handmade wooden dragon-slaying knife, do you like it?

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The craftsmanship left by our ancestors cannot be lost and must be carried forward.

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Let's give our brains a workout!

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The aerial work industry does not need this kind of cheap and empty sympathy

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You don't necessarily have to go to the ocean to surf—surf simulators and artificial wave pools can

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Use inertia to remove parts. #PopularScience #Unzip #Inertia #SlidingHammer

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The wisdom of the working people is to change the direction of force to move heavy objects. #Science

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

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How scary is it to land a plane in a gusty wind? #Science #Relief #Aircrash #Knowledge

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Why does steel need to be rolled repeatedly? #Science #Unzip #Rolling #Forging

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Why do we need to install a wellbore when digging a well? #Science #Unzip #IncreaseKnowledge #Diggin

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Why do we add a layer of metal between the hammer head and the wooden handle? #Science #StressRelief

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Films|Wingsuit Flying in Maldives

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When a rotary drilling rig is used to drill and pile, why is the hole filled with mud?

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Some lawns are dyed green, and others have their turf replaced in patches.

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How are the patterns painted on ceramics? #Science #StressRelief #Pottery #LearnSomethingNew

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