单词	heliostat
释义	heliostat /ˈhiːlɪə(ʊ)stat / noun An apparatus containing a movable mirror, used to reflect sunlight in a fixed direction.One is the ‘power tower,’ in which thousands of heliostats, or movable mirrors, beam sunlight up to a central tower, powering steam turbines.... A heliostat (a rotating mirror used to track the Sun) may be used to reflect an image horizontally into a camera. Illumination came from sunlight reflected by a heliostat placed outside of a window on the fourth floor.
随便看	hikoi hila hilar hilarious hilariously hilariousness hilarity Hilary, St Hilary term Hilbert space Hilda, St Hildegard of Bingen, St Hildesheim Hiligaynon hill Hillary, Sir Edmund Hill, Benny hillbilly hill climb hill-climber hill-climbing Hill, Damon hill farming hill figure hill fort

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