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| |||
| 安全保险系数 | |||
| 安全系数 | |||
| 保险因素; 保险因数 | |||
| 保险系数 | |||
| 保证系数; 保证度; 安全因素 | |||
| 安全因数; 储备因数 | |||
|
assurance factor : 7 phrases in 5 subjects |
| Automobiles | 2 |
| Engineering geology | 2 |
| Hydroelectric power stations | 1 |
| Metallurgy | 1 |
| Oil / petroleum | 1 |
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