When digging a caisson, why does a long-arm excavator only dig a little soil each time? #Science #Un

This RC excavator is so handsome, how many people like this painting

wodew___ushijie

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A shot of a giant bighead carp coming ashore in the Yangtze River

hupanxiongdi

23 Views

Why do we use horses to catch cattle? Actually, this evolved from herding. #Science #Relief #Cowboy

haoqiwanhuatong

1 View

Skilled workers are working at a satisfactory site~

jixiepangke

83 Views

The whole process of repairing lead-acid batteries using ancient methods

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214 Views

The teasing has begun!

hanenhuih

413 Views

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

haoqiwanhuatong

35 Views

When the toy is painted golden yellow, the grade goes up at once

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

haoqiwanhuatong

6 Views

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

haoqiwanhuatong

14 Views

Action Figure|Excavators: There are so many cars under the soil?

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Why can the fountain stone ball rotate? #Popular Science #Unzip #Physics #Fountain Stone Ball #Trivi

haoqiwanhuatong

10 Views

Cars can encounter many troubles in icy and snowy weather. Which ones have you encountered?

haoqiwanhuatong

10 Views

Why do sprinkler heads keep knocking when irrigating farmland? #Science #Decompression #Irrigation #

haoqiwanhuatong

5 Views

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

haoqiwanhuatong

13 Views

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

haoqiwanhuatong

25 Views

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

haoqiwanhuatong

23 Views

Why does the bearing emit "hot air" when installing it? This is the interference fit installation me

haoqiwanhuatong

11 Views

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

haoqiwanhuatong

13 Views

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

haoqiwanhuatong

22 Views