英文關鍵字
canal
equipment
factory
heavy
industrial
industry
infrastructure
iron
machine
machinery
machinerys
main
pipe
pipes
piping
plant
power
pressure
pump
pumping
station
steel
system
technology
tool
tube
water
wheel
英文關鍵字
canal
equipment
factory
heavy
industrial
industry
infrastructure
iron
machine
machinery
machinerys
main
pipe
pipes
piping
plant
power
pressure
pump
pumping
station
steel
system
technology
tool
tube
water
wheel