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| French | English |
| atlas de spectres | spectral atlas |
| l'apparition d'une crête dans un spectre doit être attribuée à un rayonnement X secondaire | the appearance of a peak in the spectrum is attributable to secondary X-radiation |
| région de spectre | spectral region |
| scanner à spectres multiples | multispectral scanner A remote sensing term referring to a scanning radiometer that simultaneously acquires images in various wavebands at the same time. A multispectral scanner can be carried aboard an aircraft or satellite. The Landsat multispectral scanner records images in four wavebands of visible and near infrared electromagnetic radiation to enable objects with different reflectance properties to be distinguished |
| spectre biologique | biological spectrum |
| spectre de bruit | noise spectrum |
| spectre de bruit | noise spectrum The range of frequencies occurring in the noise emitted by a source |