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| 41. | The noise became obliterating. |
| 噪 音 消 失 了 。 |
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| 42. | noise-level acceptance test |
| 噪声级验收试验 |
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| 43. | C/N(Carrier to Noise ratio) |
| 载噪比 |
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| 44. | noise level of electric power plant |
| 电站的噪声级 |
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| 45. | energy noise immunity |
| 能量-噪声抗扰性 |
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| 46. | Lamb noise silencing circuit |
| 兰姆消噪电路 |
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| 47. | noise suppressing varistor |
| 消噪电压敏电阻器 |
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| 48. | optical noise level |
| 光学噪声电平;光学噪声级 |
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| 49. | noise-free demodulation of laser |
| 无噪激光解调 |
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| 50. | code on noise levels on board ships |
| 船舶噪声级规则 |
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