| |||
| 多活塞 | |||
|
multiple-piston : 12 phrases in 7 subjects |
| Automobiles | 3 |
| Chemistry | 2 |
| Compressors | 1 |
| Oil / petroleum | 1 |
| Refrigeration | 1 |
| Shipbuilding | 1 |
| Technology | 3 |
| |||
| 多活塞 | |||
|
multiple-piston : 12 phrases in 7 subjects |
| Automobiles | 3 |
| Chemistry | 2 |
| Compressors | 1 |
| Oil / petroleum | 1 |
| Refrigeration | 1 |
| Shipbuilding | 1 |
| Technology | 3 |