| cook stove(noun, expression, technology, entity, form) |
| coolgardie safe(noun, expression, technology, entity, form) |
| dew pond(noun, expression, technology, entity, form) |
| digital textbook(noun, expression, technology, entity, form) |
| earth structure(noun, expression, technology, entity, form) |
| earthbag construction(noun, expression, technology, entity, form) |
| engineering biology(noun, expression, technology, entity, form) |
| fog collection(noun, expression, technology, entity, form) |
| fonio husking machine(noun, expression, technology, entity, form) |
| freight bicycle(noun, expression, technology, entity, form) |
| hand pump(noun, expression, technology, entity, form) |
| hempcrete(noun, technology, entity, form, study) |
| hexayurt(noun, technology, entity, form, study) |
| hippo water roller(noun, expression, technology, entity, form) |
| latrine(noun, technology, entity, form, study) |
| lava filter(noun, expression, technology, entity, form) |
| lemote(noun, technology, entity, form, study) |
| light clay(noun, expression, technology, entity, form) |
| micro hydro(noun, expression, technology, entity, form) |
| mudbrick(noun, technology, entity, form, study) |