機器
air
bio
chaipattana
city
clean
ecology
electric
energy
environment
environmental
equipment
floating
flow
flowing
garden
generator
green
improve
increase
industrial
industry
motion
motor
natural
nature
outdoor
oxygen
oxygen turbine
park
pollution
pond
power
purify
sewage
stream
surface
sustainable
system
technology
thailand
travel
treatment
tree
turbine
urban
waste
water
wheel
work