機器
background
box
closeup
complex
complexity
component
cut
demonstration
detail
display
drilling
engine
engineering
equipment
factory
gear
gearbox
industrial
industry
iron
lathe
lubricant
machinery
machining
manufacture
manufacturing
mechanic
mechanical
metal
metallic
milling
model
mold
part
power
powerful
precision
process
production
reliability
sample
section
specimen
steel
technical
technology
tool
transmission
work