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to phrases
spectral density
bridg.constr.
谱密度
IT
频谱密度
met.
谱线密度
phys.
光谱
频谱
密度
tech.
光谱密度
;
谱
线
密度
;
波谱能量分布
spectral density:
108 phrases
in 16 subjects
Air defense
1
Aviation
3
Bridge construction
4
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10
Electric machinery
1
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15
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1
Geophysics
9
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2
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2
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1
Oil / petroleum
2
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12
Technology
36
Telecommunications
2
Wind Energy
7
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