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| 安全监测 | |||
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| 安全监护人员 | |||
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safety monitoring : 14 phrases in 9 subjects |
| Artificial intelligence | 1 |
| Automobiles | 1 |
| China | 1 |
| Communications | 1 |
| Electronics | 1 |
| Hydroelectric power stations | 3 |
| Rail transport | 3 |
| Space | 1 |
| Technology | 2 |
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