 |
| |||
| sound beam | |||
| acoustic beam | |||
| 声束: 63 phrases in 17 subjects |
| Acoustics | 2 |
| Air defense | 1 |
| Automobiles | 1 |
| Aviation | 6 |
| Chemistry | 1 |
| Commerce | 1 |
| Earth sciences | 1 |
| Electronics | 3 |
| Fishery fishing industry | 2 |
| General | 3 |
| Geophysics | 1 |
| Metallurgy | 2 |
| Oil / petroleum | 4 |
| Piezoelectric crystals | 1 |
| Shipbuilding | 2 |
| Technology | 27 |
| United Nations | 5 |