Why does the drill bit of a horizontal directional drill spray water? #Science #StressRelief #Horizo

The wisdom of the working people! Using friction and gravity to climb a tree. #Science #Unwind #Tree

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

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Speed bumps for boys and girls!! Those novel machines

jixiepangke

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

haoqiwanhuatong

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Skilled workers are working at a satisfactory site~

jixiepangke

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Decompression video of the mechanical series~

jixiepangke

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What is CIPP pipe repair technology?

jixiepangke

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

haoqiwanhuatong

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Speed Bump!! Cool Mechanical Series 6.17

jixiepangke

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Amazing work site with skilled workers!!

jixiepangke

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Useless life hacks!!

jixiepangke

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When woodpeckers peck at trees, are they really curing the trees' illnesses?

jixiepangke

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Why doesn't it hurt when a needle is stuck in my finger?

yaki1

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[Tianyuan Breakthrough/Shadow of the Sun] My drill is the drill that wants to break through the sky!

Qianzhaiwuyiyuandegaozhongsheng

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Let’s take a look at the amazing work site of skilled workers~

jixiepangke

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"Man speed bump, satisfying work site"

jixiepangke

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It turns out that the horns of different cows are so different.

haoqiwanhuatong

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I wish you all a happy Dragon Boat Festival!

jixiepangke

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A satisfying work site at the speed bump of humanity~

jixiepangke

30 Views

Do you know why elephants crush watermelons before eating them? #elephant#elephantfoot#elephant eats

haoqiwanhuatong

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