表 9. Contribution rate of influencing factors.
影响因素贡献率
| 因素 | A | B | C | D |
| 偏差平方和 | 361.22 | 138.30 | 415.71 | 64.35 |
| 贡献率 | 36.48% | 13.97% | 41.98% | 6.50% |
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