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| 直流 | |||
| 零位频率 | |||
| 零位频率 | |||
| ★ 零频 | |||
| 零频率 | |||
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| 零频率的 | |||
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zero frequency : 29 phrases in 11 subjects |
| Air defense | 4 |
| Computers | 1 |
| Earth sciences | 2 |
| Electric machinery | 2 |
| Electronics | 5 |
| Information technology | 2 |
| Oil / petroleum | 1 |
| Rail transport | 1 |
| Space | 4 |
| Technology | 2 |
| Wind Energy | 5 |