英文關鍵字
automatic
balloons
barrel
boiler
cleaning
electric
factory
filter
gas
heat
horizontal
household
industrial
insulation
interior
iron
many
mechanics
metallic
meter
modern
pipelines
pipes
plant
plumbing
power
pressure
production
pump
pumps
room
sensor
sensors
set
steam
steel
system
tank
technical
technology
temperature
treatment
ttepoizolyatsiya
unit
valve
water
yellow