Bedeutungen
[der/das]光谱，光谱范围；频谱范围
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[der] 光谱范围。频谱范围。频谱区。
spectral range, spectral region, region of the spectrum
❬hr color=#336cc size=1 /❭
[der] 光谱范围。频谱范围。频谱区。
spectral range, spectral region, region of the spectrum

Substantiv, f