英文關鍵字
background
business
chemistry
cleaning
construction
container
cooling
dairy
duct
energy
engineering
factory
filter
filtering
food
freezing
gas
industry
machine
manometer
manufactory
manufacturing
milk
modern
pasteurization
pipe
pipeline
piping
plant
pump
reservoir
rig
separator
stainless
system
tank
transportation
trumpet
tube
vat
water
workshop