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máscara espectral | |||
espectrograma | |||
espectro; espectro uniforme | |||
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espectral |
spektri : 30 phrases in 12 subjects |
Antennas and waveguides | 1 |
Communications | 5 |
Earth sciences | 3 |
Electronics | 5 |
Health care | 2 |
Information technology | 1 |
Life sciences | 1 |
Mathematics | 3 |
Natural sciences | 1 |
Physical sciences | 1 |
Radio | 2 |
Statistics | 5 |