| English | eng-000 |
| step-down gear | |
| 普通话 | cmn-000 | 减速器 |
| English | eng-000 | decelerator |
| English | eng-000 | reducing device |
| English | eng-000 | reducing mechanism |
| English | eng-000 | reducing unit |
| English | eng-000 | retarder |
| English | eng-000 | speed reducer |
| русский | rus-000 | шестерня понижающей передачи |