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| needs for security; needs for safety | |||
| security needs | |||
| safety needs | |||
| safety need; security need | |||
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安全需要 : 10 phrases in 6 subjects |
| Business | 1 |
| China | 1 |
| Explosives and Explosive Ordnance Disposal | 2 |
| General | 1 |
| Management | 3 |
| Project management | 2 |
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