Why can rollers create patterns on metal surfaces? #Science #Unzip #Metalworking #Knurling

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haoqiwanhuatong

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The fishing line cooked with pig blood is tough and not easy to break. Then put some hooks on it and

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The fishing line cooked with pig blood is tough and not easy to break. Then put some hooks on it and

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

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

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

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Why does steel slag when forging iron? #Science #Unzip #Forging #ExtremeComfort

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Why does steel slag when forging iron? #Science #Unzip #Forging #ExtremeComfort

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

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

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

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Can cliff skiing cause an avalanche? #Science #Unwind #CliffSkiing #Avalanche #Trivia

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Can cliff skiing cause an avalanche? #Science #Unwind #CliffSkiing #Avalanche #Trivia

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

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How to lay a qualified asphalt road? #Science #Unzip #Paving #Knowledge

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Why should you clean your car's exhaust pipe? #Science #Unzip #Car #Cleaning #Trivia

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Why should you clean your car's exhaust pipe? #Science #Unzip #Car #Cleaning #Trivia

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Why do honey collectors only harvest a small portion of the hive when harvesting honey at high altit

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

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

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How harsh is the environment on a polar research vessel? #PopularScience #Unzip #ResearchShip #Polar

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How harsh is the environment on a polar research vessel? #PopularScience #Unzip #ResearchShip #Polar

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

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

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Why did the steel fly so high in the flying steel accident? #Science #Unzip #RollingSteel #FlyingSte

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Why did the steel fly so high in the flying steel accident? #Science #Unzip #RollingSteel #FlyingSte

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When I rubbed out Wall-E with my hands, my life took a qualitative leap~

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When I rubbed out Wall-E with my hands, my life took a qualitative leap~

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