| English | eng-000 |
| main clock | |
| 普通话 | cmn-000 | 主时钟 |
| 普通话 | cmn-000 | 主钟 |
| 普通话 | cmn-000 | 母钟 |
| English | eng-000 | clock synchronizer |
| English | eng-000 | control clock |
| English | eng-000 | master clock |
| English | eng-000 | master synchronizer |
| English | eng-000 | master timer |
| English | eng-000 | primary clock |