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| engineering model (航天器研制阶段的初样星模型，用来评定航天器重量、尺寸和电气性能的协调性); prototype model | |||
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| prototype model of satellite; prototype satellite | |||
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初样 星 : 4 phrases in 2 subjects |
| Space | 3 |
| United States | 1 |
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