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| 发声: 531 phrases in 29 subjects |
| Astronautics | 3 |
| Automobiles | 2 |
| Aviation | 3 |
| Biology | 3 |
| Chemistry | 1 |
| Electronics | 18 |
| Environment | 1 |
| Figurative | 1 |
| General | 317 |
| Geology | 2 |
| Informal | 2 |
| Linguistics | 1 |
| Medical | 24 |
| Military | 5 |
| Mining | 1 |
| Missiles | 1 |
| Nautical | 5 |
| Navy | 2 |
| Oceanography & oceanology | 6 |
| Oil and gas | 1 |
| Oil processing plants | 5 |
| Phonetics | 1 |
| Production | 1 |
| Radio | 1 |
| Shipbuilding | 1 |
| Technology | 118 |
| Telecommunications | 1 |
| Uncommon / rare | 1 |
| United Nations | 3 |