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| covariance matrix; dispersion matrix | |||
| variance-covariance matrix | |||
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协方差 矩 阵 : 26 phrases in 6 subjects |
| Air defense | 1 |
| Artificial intelligence | 3 |
| Business | 9 |
| Oil / petroleum | 1 |
| Space | 6 |
| Technology | 6 |
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