| русский | rus-000 |
| эскизный проект | |
| English | eng-000 | conceptual design |
| English | eng-000 | draft |
| English | eng-000 | draft design |
| English | eng-000 | pilot scheme |
| English | eng-000 | predesign |
| English | eng-000 | preliminary design |
| English | eng-000 | rough plan |
| English | eng-000 | schematic design |
| English | eng-000 | sketch design |