 |
|
low : 26 phrases in 10 subjects |
| Abbreviation | 13 |
| Aviation | 1 |
| Business | 1 |
| Ecology | 1 |
| Electronics | 1 |
| Military | 5 |
| Nuclear and fusion power | 1 |
| Photography | 1 |
| Transport | 1 |
| United States | 1 |
|
|
low : 26 phrases in 10 subjects |
| Abbreviation | 13 |
| Aviation | 1 |
| Business | 1 |
| Ecology | 1 |
| Electronics | 1 |
| Military | 5 |
| Nuclear and fusion power | 1 |
| Photography | 1 |
| Transport | 1 |
| United States | 1 |