How is river sand mined? #Science #Sand-Sucking Boat #Stress Relief #Educational

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

haoqiwanhuatong

8 Views

Why do Japanese people dislike this hand gesture?

zuirezhishi

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

haoqiwanhuatong

10 Views

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

haoqiwanhuatong

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

haoqiwanhuatong

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

haoqiwanhuatong

15 Views

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

haoqiwanhuatong

13 Views

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

haoqiwanhuatong

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

haoqiwanhuatong

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Why do we need to grind off the bark? This is the process of peeling and rounding the wood before pe

haoqiwanhuatong

34 Views

The skilled workers' amazing work site at the speed bump installation!

jixiepangke

9 Views

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

haoqiwanhuatong

10 Views

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

haoqiwanhuatong

23 Views

Why does a well spout gas? #Science #StressRelief #Drilling #Well Blowout #FunFacts

haoqiwanhuatong

16 Views

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

haoqiwanhuatong

28 Views

The most perfect revenge!

laoshuguaitan

69 Views

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

haoqiwanhuatong

15 Views

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

haoqiwanhuatong

67 Views

If you often watch videos, you don’t know how terrible the job of a porn appraiser is!

d___iezatan

155 Views

Why not use a high-pressure water gun to wash your car? #Science #Unzip #High-pressureWaterGun #CarW

haoqiwanhuatong

8 Views