| English | eng-000 |
| preliminary exploration | |
| 普通话 | cmn-000 | 普查 |
| English | eng-000 | census |
| English | eng-000 | census survey |
| English | eng-000 | general investigation |
| English | eng-000 | general survey |
| English | eng-000 | reconnaissance survey |
| русский | rus-000 | предварительная разведка |