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51. | spectrum purity |
| 频谱纯度 |
|
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52. | inversion spectrum |
| 反转光谱 |
|
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53. | acceleration spectrum |
| 加速度谱 |
|
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54. | hydrogen spectrum |
| 氢光谱 |
|
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55. | acoustic spectrum |
| 声谱 |
|
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56. | spectrum interval |
| 光谱间隔 |
|
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57. | spectrum density |
| 频谱密度 |
|
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58. | spectrum stripping |
| 谱线分离技术 |
|
|
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59. | Spectrum distributio |
| 光谱分布 |
|
|
| |
60. | radiation spectrum |
| 辐射谱 |
|
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| |