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| 系统模式化 | |||
| 系统模造 | |||
| 系统模拟 | |||
| 系统模型化; 系统建模 | |||
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| 系统模型化 | |||
| system modelling: 12 phrases in 6 subjects |
| Business | 1 |
| Earth sciences | 3 |
| Electronics | 1 |
| Space | 1 |
| Technology | 4 |
| United Nations | 2 |
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