environmental
abstract
alternative
arrow
background
blue
clean
concentration
concept
conservation
design
ecology
electric
electricity
energy
engineering
environment
equipment
generation
global
graphic
green
illustration
industry
info
landscape
line
mirror
nature
parabolic
power
renewable
resource
rotation
shape
silhouette
sky
solar panels
space
structure
summer
sun
sustainable development
symbol
technology
thermos
title
transmission
turbine
定額
Graphic of Parabolic cylinder collectors are parabolic shaped mirrors placed in rows. Its operation consists in the concentration of the solar rays in a central tube through which circulates oil.の素材 [FY31068842169]
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