英文關鍵字
blue
boiler
brewery
capacity
capsule
chemical
clean
complex
conservation
construction
container
energy
engineering
equipment
factory
huge
industrial
industry
large
liquid
machinery
manufacture
manufacturing
metal
modern
panorama
pipe
power
pressure
processing
production
pump
purification
purity
reserve
reservoir
sky
solid
stainless
steel
storage
store
system
tank
technology
tool
tower
tube
valve
water