Variable Speed
| Technology
| variable speed | |
| earth.sc. transp. | velocidade variável |
| technology | |
| econ. | tecnologia |
| |||
| velocidade variável | |||
|
Variable Speed : 30 phrases in 6 subjects |
| Earth sciences | 3 |
| Electronics | 4 |
| Materials science | 1 |
| Mechanic engineering | 18 |
| Technology | 1 |
| Transport | 3 |