| English | eng-000 |
| bottom course | |
| 普通话 | cmn-000 | 底层 |
| English | eng-000 | base coat |
| English | eng-000 | base course |
| English | eng-000 | bottom layer |
| English | eng-000 | bottom set |
| English | eng-000 | footing course |
| English | eng-000 | lower layer |
| English | eng-000 | priming |
| English | eng-000 | sublayer |
| English | eng-000 | substratum |
| русский | rus-000 | нижний слой |
| русский | rus-000 | подстилающий слой дорожного покрытия |