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| 系数方法 | |||
| 比率法; 比功率法 | |||
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| 利用系数法 | |||
| 利用系数法 (计算照明用) | |||
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метод коэффициентов : 21 phrases in 4 subjects |
| Electronics | 1 |
| General | 10 |
| Mathematics | 5 |
| Technology | 5 |
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