| |||
| 变速器 | |||
| 变速箱 | |||
| |||
| 变速箱 | |||
|
speed-change box : 5 phrases in 5 subjects |
| Drilling | 1 |
| Military | 1 |
| Oil / petroleum | 1 |
| Shipbuilding | 1 |
| Technology | 1 |
| |||
| 变速器 | |||
| 变速箱 | |||
| |||
| 变速箱 | |||
|
speed-change box : 5 phrases in 5 subjects |
| Drilling | 1 |
| Military | 1 |
| Oil / petroleum | 1 |
| Shipbuilding | 1 |
| Technology | 1 |