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| safety precautions; safety protection; safe guarding | |||
| 安全防范: 18 phrases in 9 subjects |
| China | 3 |
| Electronics | 1 |
| Exhibitions | 1 |
| General | 2 |
| Hydroelectric power stations | 1 |
| Information technology | 1 |
| Oil / petroleum | 1 |
| Rail transport | 5 |
| Technology | 3 |
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