|
volume control : 60 phrases in 12 subjects |
| Agriculture | 2 |
| Automated equipment | 3 |
| Chemistry | 2 |
| Communications | 28 |
| Earth sciences | 3 |
| Electronics | 9 |
| General | 1 |
| Information technology | 2 |
| Microsoft | 3 |
| Natural resourses and wildlife conservation | 3 |
| Technology | 1 |
| Transport | 3 |