英文關鍵字
drilling
employment
jobs
economy
worker
apprenticeship
apprentice
axis
technology
austria
steel
iron
fast
factory
drill
machining
cnc
modern
architecture
background
design
travel
white
black
business
metal
building
blue
power
transportation
city
equipment
perspective
roof
beautiful
machine
man
industrial
urban
object
chipping
prototype
tool
tooling