9 الموسم
158 حلقة
MegaStructures - Season 0 Episode 20 الحلقة 20
Behind the scenes of geothermal power complexes in California and Iceland, and a look at how scientists hope to expand its use by digging deeper into the Earth's crust.
- عام: 2012
- بلد: United States of America
- النوع: Documentary
- ستوديو: National Geographic
- الكلمة الرئيسية:
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