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hannonic analysis | |||
wave analysis | |||
harmonic analysis | |||
frequency analysis | |||
Fourier analysis; harmonic reduction |
谐波分析 : 23 phrases in 11 subjects |
Air defense | 2 |
Aviation | 1 |
Electronics | 6 |
Geophysics | 1 |
Information technology | 2 |
Metallurgy | 1 |
Nautical | 1 |
Otorhinolaryngology | 1 |
Shipbuilding | 1 |
Space | 1 |
Technology | 6 |