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| 系统生命周期 | |||
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| 系统生存寿命周期; 系统使用期 | |||
| 系统生存周期 | |||
| 系统生命周期 | |||
| 系统生存期; 系统寿命周期 | |||
| systems life cycle: 16 phrases in 9 subjects |
| Aviation | 1 |
| Business | 1 |
| Cryptography | 1 |
| Electronics | 3 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Information technology | 4 |
| Multimedia | 1 |
| Name of organization | 1 |
| Space | 3 |
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