機器
complex
connect
connection
control
cross
devices
double
energy
engineering
equipment
facility
flow
fuel
gas
heat
heating
heavy
hot
industrial
industry
installation
interior
light
metal
oil
part
petrol
petroleum
pipe
pipelines
pipes
plant
power
pressure
pump
refinery
right
shape
sign
steel
system
technology
temperature
valve
valves
warm
water
wheels