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| 保护电平 | |||
| 防护水平; 保护水平 | |||
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protection level : 21 phrases in 12 subjects |
| Business | 2 |
| Communications | 2 |
| Cryptography | 1 |
| Economy | 1 |
| Electric machinery | 1 |
| Electronics | 2 |
| Food industry | 3 |
| Hydroelectric power stations | 1 |
| Information technology | 1 |
| Space | 2 |
| Technology | 4 |
| United Nations | 1 |
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