英文關鍵字
lathing
bit
drill
tool
equipment
shavings
machine
factory
drilling
steam
metal
vapor
industrial
workshop
steel
broken
hole
industry
production
technology
closeup
sharp
motion
detail
metallic
spiral
work
rotate
iron
idle
bore
instrument
repair
turning
rotating
precision
power
engineering
worker
table
indoors
rotation
press
professional
object
hard
hardware
swarf
construction
scattering