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| spectral; spectral density of ...; spectral concentration of ... | |||
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| spectral concentration; spectral distribution of a radiant, luminous or photon quantity | |||
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спектрална густина : 2 短语, 1 学科 |
| 数学 | 2 |
| |||
| spectral; spectral density of ...; spectral concentration of ... | |||
| |||
| spectral concentration; spectral distribution of a radiant, luminous or photon quantity | |||
|
спектрална густина : 2 短语, 1 学科 |
| 数学 | 2 |