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21. | normal velocity surface |
| 法速曲面 |
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22. | constant velocity migration |
| 常速偏移 |
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23. | eddy-velocity component |
| 涡旋分速 |
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24. | velocity-modulating generator |
| 速调式振荡器 |
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25. | detonation velocity test |
| 爆速试验 |
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26. | constant velocity system |
| 恒速系统 |
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27. | confined detonation velocity |
| 密闭爆速 |
|
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28. | velocity/height ratio |
| 速高比 |
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29. | linear gas velocity |
| 气体线速 |
|
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30. | single velocity stage |
| 单速级 |
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