 |
| action: 23 phrases in 9 subjects |
| Abbreviation | 10 |
| Ecology | 1 |
| Education | 1 |
| Military | 3 |
| NASA | 1 |
| Non-governmental organizations | 1 |
| Oceanography & oceanology | 1 |
| Transport | 1 |
| United States | 4 |
|
| action: 23 phrases in 9 subjects |
| Abbreviation | 10 |
| Ecology | 1 |
| Education | 1 |
| Military | 3 |
| NASA | 1 |
| Non-governmental organizations | 1 |
| Oceanography & oceanology | 1 |
| Transport | 1 |
| United States | 4 |