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31. | acoustic timing machine |
| 声音计时机构 |
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32. | acoustic timing |
| 声音计时 |
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33. | calendar subroutine |
| 计时子程序 |
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34. | accumulative timing |
| 积累计时法 |
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35. | it's the only card that allows him access to the NetJets, a world-class fleet of aircraft. |
| 这是登机计时卡,一流飞机的计时卡 |
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36. | clock pulse source |
| 计时脉冲源 |
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37. | velocity measuring chronograph |
| 测速计时仪 |
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38. | delta-T timing unit |
| 时差计时单元 |
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39. | A clock measures time. |
| 钟用来计时。 |
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40. | time-keeping mechanism |
| 计时机械装置 |
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