![Working on parts for a biogas plant during the biogas experimentation week in Tamera, Portugal Working on parts for a biogas plant during the biogas experimentation week in Tamera, Portugal](/sites/default/files/styles/fullhd/public/background/dsc00399.jpg?itok=e5qic4F8)
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Working on parts for a biogas plant during the biogas experimentation week in Tamera, Portugal
photos
Cam
NEX-7
Exposer Time
1/2000s
Aperture
f/6.3