| |||
| 可变行程 | |||
| 可变动程 | |||
| |||
| 变冲程［行程］ | |||
|
variable stroke : 21 phrases in 9 subjects |
| Agriculture | 3 |
| Automobiles | 3 |
| Aviation | 1 |
| Business | 1 |
| Chemistry | 1 |
| Electronics | 2 |
| Nautical | 1 |
| Oil / petroleum | 2 |
| Technology | 7 |
| |||
| 可变行程 | |||
| 可变动程 | |||
| |||
| 变冲程［行程］ | |||
|
variable stroke : 21 phrases in 9 subjects |
| Agriculture | 3 |
| Automobiles | 3 |
| Aviation | 1 |
| Business | 1 |
| Chemistry | 1 |
| Electronics | 2 |
| Nautical | 1 |
| Oil / petroleum | 2 |
| Technology | 7 |