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| 振幅频谱 | |||
| 振幅谱; 波幅谱; 振幅谱振幅频谱; 振幅谱各个频率上 振幅的比较 | |||
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амплитудный спектр : 3 phrases in 3 subjects |
| General | 1 |
| Mathematics | 1 |
| Technology | 1 |
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