Observing System
| Simulation Experiment
| observing system abbr. | |
| tech. | 观察系统 |
| simulation experiment abbr. | |
| avia. | 模拟试验 |
| eng.geol. | 模拟实验 |
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| 观察系统 | |||
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Observing System : 67 phrases in 16 subjects |