| solar-powered desalination unit(noun, expression, technology, entity, form) |
| solar chimney(noun, expression, technology, entity, form) |
| solar water disinfection(noun, expression, technology, entity, form) |
| spiral pump(noun, expression, technology, entity, form) |
| spring box(noun, expression, technology, entity, form) |
| stirrup pump(noun, expression, technology, entity, form) |
| superadobe(noun, technology, entity, form, study) |
| time switch(noun, expression, technology, entity, form) |
| treadle pump(noun, expression, technology, entity, form) |
| universal nut sheller(noun, expression, technology, entity, form) |
| water timer(noun, expression, technology, entity, form) |
| waterladder pump(noun, expression, technology, entity, form) |
| whirlwind wheelchair(noun, expression, technology, entity, form) |
| windcatcher(noun, technology, entity, form, study) |
| zero-emissions vehicle(noun, expression, technology, entity, form) |