| |||
| 波浪共振器 | |||
|
wave resonator : 15 phrases in 7 subjects |
| Air defense | 1 |
| Electronics | 4 |
| Materials science | 1 |
| Piezoelectric crystals | 1 |
| Shipbuilding | 2 |
| Space | 2 |
| Technology | 4 |
| |||
| 波浪共振器 | |||
|
wave resonator : 15 phrases in 7 subjects |
| Air defense | 1 |
| Electronics | 4 |
| Materials science | 1 |
| Piezoelectric crystals | 1 |
| Shipbuilding | 2 |
| Space | 2 |
| Technology | 4 |