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| 保护比; 保护率 | |||
| 防护率 | |||
| 保护比［率］ | |||
| 干扰防护度 | |||
| protection ratio: 11 phrases in 5 subjects |
| Air defense | 1 |
| Electricity generation | 2 |
| Electronics | 1 |
| Hydroelectric power stations | 4 |
| Technology | 3 |
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