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공학

Image of a crane towering under a clear blue sky
momom

momo

Construction site featuring heavy machinery and workers in action
Tsubasa MfgT

Tsubasa Mfg

Close-up of a metallic structure featuring multiple components against a gray background
sg_cameras

sg_camera

Image showing the connection of a bridge's understructure featuring white concrete and black fittings
sakurais

sakurai

Construction site with excavator and pile of debris
Tsubasa MfgT

Tsubasa Mfg

Close-up of an old machine showing metal components and pipes
erikoe

eriko

Detailed and intricate structure of a mechanical component in black and white
erikoe

eriko

View from beneath an aircraft inside a hangar showcasing the fuselage and wings
RyotaR

Ryota

Piles of bags and pipes at a construction site
YuzurigimaY

Yuzurigima

Detailed view of steel structures and scaffolding at a construction site
YuzurigimaY

Yuzurigima

A construction site with a pile of rubble and part of heavy machinery
YuzurigimaY

Yuzurigima

Yellow excavator working at a construction site with a pile of white gravel
YuzurigimaY

Yuzurigima

Construction site with heavy machinery demolishing a building and piles of rubble
YuzurigimaY

Yuzurigima

Detailed view of a wooden arch bridge from underneath
tamu1500t

tamu1500

View of a crane vessel working under a bridge over the sea
kyonsiiiik

kyonsiiii

Excavator bucket digging into the ground exposing a concrete pipe
Tsubasa MfgT

Tsubasa Mfg

Aerial view of a construction site with two red excavators surrounded by debris and damaged buildings
hiroh

hiro