A set of curling stones costs hundreds of thousands? The ice surface even costs tens of millions?

Car repair tips: temporary inflation, wire bundling to prevent punctures, DIY fenders, lubricating t

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Super cool mechanical series of speed bumps! 7.18

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Speed bump!! Amazing machinery~

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As long as you use the right method, work won't be that tiring.

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The Fertilization Process of Sperm and Egg

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The Great Wall version of the China Pavilion! The original Plants vs. Zombies with Chinese elements!

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

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Car Disassembly Video

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Introduction to Traditional Group Farming Culture in Africa

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Why do we need to cut a slant on the tree when felling it?

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Yemen is the first country to be destroyed by drugs, even children are not spared. How tragic is it?

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

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How are mooring ropes secured? #Science #Unzip #MooringRopes #Ship

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Why is steel colored after cutting? #Science #Unzip #Metalworking #CoolKnowledge

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There are no such things as "useless people" in this world—when properly utilized, everyone is a tre

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Gear machining: Why only a tiny bit of cutting is required? #Science #Unzip #Machinery #ExtremeComfo

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Why are the joints of steel cables so strong? #Science #Unzip #SteelCable #MachineryManufacturing #E

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Why don’t civilian aircraft spray flames? The working principle of turbofan jet engines

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Super cool mechanical series of speed bumps!

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Why can a hatchet easily chop down a tree as thick as a bowl? #Science #Relief #Hatchet #Logging #Tr

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