| mean solar day(expression, science, sun, astronomy, noun) |
| mean solar time(expression, science, sun, astronomy, noun) |
| solar apex(expression, science, sun, astronomy, noun) |
| solar array(expression, sun, science, astronomy, noun) |
| solar collector(expression, science, sun, astronomy, noun) |
| solar constant(expression, science, sun, astronomy, noun) |
| solar day(expression, sun, science, astronomy, noun) |
| solar dish(expression, sun, science, astronomy, noun) |
| solar halo(expression, science, sun, astronomy, noun) |
| solar heater(expression, science, sun, astronomy, noun) |
| solar house(expression, science, sun, astronomy, noun) |
| solar month(expression, science, sun, astronomy, noun) |
| solar parallax(expression, science, sun, astronomy, noun) |
| solar physics(expression, science, sun, astronomy, noun) |
| solar radiation(expression, science, sun, astronomy, noun) |
| solar trap(expression, science, sun, astronomy, noun) |
| solar wind(expression, science, sun, astronomy, noun) |
| shallow-junction solar cells(expression, technology, science, physics) |
| European solar thermal energy conference(noun, technology, entity, expression, world) |
| European solar thermal industry federation(noun, technology, entity, expression, world) |