Lady Rong's Science Lesson: Crafting an Ultra-Precise Cube

How to keep fish alive out of water - Lu Zhishen Popular Science

heiyaketang

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

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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doraemon

bashilengzhishi

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Those are super cool machines!!

jixiepangke

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Speed bumps for boys and girls!! Those novel machines

jixiepangke

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Let's take a look at the amazing workplace of skilled workers 9.2

jixiepangke

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Irresistible mechanical charm~

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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Men's Speed Bumps: Exciting Machinery

yaki1

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Let's take a look at some satisfying work scenes! 10.9

jixiepangke

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

d___iezatan

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Skilled workers create a satisfying work site!

jixiepangke

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Torturing Scene in "Princess Pearl" + Smirking Special Effect

Tongtan

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Speed Bump Worker Series

jixiepangke

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

yaki1

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It is said that 30 ml of nitroglycerine is more powerful than a grenade, and it explodes on touch?

dandingbiji

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How sexy is sexy lingerie?

paidahexiaokui

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Some useful life tips~

jixiepangke

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