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11. | Harmonics can be added to a wave which has a single frequency to produce a complex wave. |
| 谐音加在单频波上产生复波。 |
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12. | a single frequency (or very narrow band) of radiation in a spectrum. |
| 在辐射光谱中单一频率的波呈现的一个很窄的带。 |
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13. | single frequency laser diode |
| 单频激光二极管 |
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14. | single-channel frequency modulation telemeter |
| 单通道调频遥测仪 |
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15. | single frequency laser oscillation |
| 单频激光振荡 |
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16. | single frequency carbon dioxide laser |
| 单频二氧化碳激光器 |
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17. | Inband pulsing single frequency line signalling system for telephone automatic switching network |
| GB3376-1982电话自动交换网带内单频脉冲线路信号方式 |
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18. | SFD (Single Frequency Dialling) |
| 单频拨号 |
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19. | The phase velocity basically tells you how fast a pure sine wave( with a single frequency) moves. |
| 相速度可以告诉我们一个纯正弦波的传播速度。 |
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20. | single frequency argon ion ring laser |
| 单频氩离子环形激光器 |
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