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| 控制保护 | |||
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control protection : 29 phrases in 12 subjects |
| Air defense | 1 |
| Automobiles | 3 |
| Aviation | 7 |
| China | 1 |
| Electric machinery | 1 |
| Electronics | 4 |
| General | 1 |
| Metallurgy | 2 |
| Name of organization | 1 |
| Space | 2 |
| Technology | 4 |
| Wind Energy | 2 |
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