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Solar vacuum tube for heating air.
- Author
- Sven Tetzlaff
- Created on
- Tuesday 19 March 2013
- Posted on
- Sunday 1 September 2019
- Dimensions
- 2945*1963
- File
- tubes-1.jpg
- File size
- 3353 KB
- Keywords
- energy, renewable, Solar Air Heater, solar collector, solar energy, solar thermal, solar tube, tube, vacuum tubes
- Albums
- Visits
- 1929
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