 |
| |||
| 甚低频 | |||
| 极低频300Hz ~ 3kHz | |||
| 极低频率、特低频率 | |||
| 极低频 | |||
| 极低频 (30 ~300 Hz) | |||
| 极低频率 | |||
| 极低频＜ 300Hz; 极低频< 300Hz | |||
| English thesaurus | |||
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| ELF (3 Hz - 3 kHz) | |||
| ELF | |||
|
extremely low frequency : 11 phrases in 6 subjects |
| Air defense | 2 |
| Aviation | 2 |
| Electronics | 2 |
| Information technology | 2 |
| Space | 2 |
| Technology | 1 |
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