Why are ropes twisted together in a spiral? This not only disperses stress but also makes the rope m

What on earth is this? Any experts out there who recognize it? Please enlighten us!

ningcuiya

0 View

Those irresistible mechanical charms~

jixiepangke

25 Views

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

haoqiwanhuatong

27 Views

Today's decompression video: the irresistible charm of machinery~

jixiepangke

92 Views

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

haoqiwanhuatong

15 Views

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

haoqiwanhuatong

8 Views

Today's decompression video: the workers' amazing work scene~

jixiepangke

92 Views

Speed Bumps: Skilled Worker Series ~3.29

jixiepangke

34 Views

Men's Speed Bump: A Satisfactory Work Site

jixiepangke

152 Views

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

haoqiwanhuatong

18 Views

Irresistible mechanical charm~

jixiepangke

127 Views

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

haoqiwanhuatong

9 Views

A satisfying work site at the speed bump of humanity~

jixiepangke

49 Views

Speed Bump Worker Series!

jixiepangke

20 Views

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

haoqiwanhuatong

54 Views

When shoeing a horse, why do we use red-hot horseshoes to burn the hooves?

haoqiwanhuatong

13 Views

Decompression video of the workers series!

jixiepangke

31 Views

Man speed bump!! Amazing work site

jixiepangke

66 Views

Skilled workers are working at a satisfactory site~

jixiepangke

40 Views

Speed Bumps: Skilled Worker Series ~12.2

jixiepangke

32 Views