點數下載
英文關鍵字
accurate
precision
precise
accuracy
analyzing
analysing
analysis
calculating
calculation
closeup
close-up
colorimage
colourimage
color
colour
image
composite
concept
conceptual
diagram
dial
digitalcomposite
electricity
electric
energy
energyefficient
environmentalconservation
eco-friendly
ecofriendly
environmentallyfriendly
environmentalissue
issue
fuelandpowergeneration
fuel
power
powergeneration
green
illustration
light
lightbulb
measurement
measuring
nobody
nopeople
number
research
researching
ruler
stilllife
sustainability
sustainable
sustainableresources
text
vertical
westernscript
word
energysaving
energyefficiency