| English | eng-000 |
| varying speed | |
| 普通话 | cmn-000 | 变速 |
| English | eng-000 | gear shift |
| English | eng-000 | gearshift |
| English | eng-000 | non-uniform velocity |
| English | eng-000 | shift |
| English | eng-000 | speed change |
| English | eng-000 | variable speed |
| English | eng-000 | velocity variation |