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光谱级
agric. spectrograde (spectrogradus)
met. spectral order
oil order of spectrum
tech. spectrograde (的); spectrographic grade; spectrographical grade
光谱
tech. spectrum level
光谱级
gen. spectrograde
光谱[频谱]级
space spectrograde
光 谱 级: 31 phrases in 7 subjects
Earth sciences3
Electronics6
Metallurgy2
Oil / petroleum1
Shipbuilding1
Technology17
United States1