機器
air
automation
automobile
commercial
compression
compressor
connection
control
cool
engineering
equipment
factory
flow
flowing
fuel
generator
industrial
industry
infrastructure
inside
installation
liquid
maintenance
manufacture
manufacturing
mechanic
mechanical
metal
motor
pipe
pipeline
piping
position
power
precision
pressure
process
production
pump
refrigeration
refrigerator
service
steel
system
technology
temperature
transportation
tube
work