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| 验波器 | |||
| ★ 检波器 | |||
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wave detector : 26 phrases in 12 subjects |
| Air defense | 3 |
| Business | 1 |
| Electronics | 2 |
| Explosives and Explosive Ordnance Disposal | 1 |
| General | 1 |
| Geophysics | 2 |
| Hydroelectric power stations | 1 |
| Nautical | 1 |
| Radio | 1 |
| Shipbuilding | 2 |
| Space | 3 |
| Technology | 8 |