| |||
| 测试发动机运转工作 | |||
|
engine operating : 29 phrases in 6 subjects |
| Automobiles | 9 |
| Aviation | 9 |
| Nautical | 1 |
| Shipbuilding | 4 |
| Space | 3 |
| Technology | 3 |
| |||
| 测试发动机运转工作 | |||
|
engine operating : 29 phrases in 6 subjects |
| Automobiles | 9 |
| Aviation | 9 |
| Nautical | 1 |
| Shipbuilding | 4 |
| Space | 3 |
| Technology | 3 |