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31. | now, on his feet; now, on his knees; |
| 一时跪下,一时站起; |
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32. | momentary switch |
| 瞬时开关 |
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33. | maximum momentary speed |
| 瞬间最大速度 |
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34. | maximum momentary speed variation |
| 最大瞬时转速变化率 |
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35. | momentary excess current |
| 瞬时过电流 |
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36. | the momentary present. |
| 目前状态的瞬间时刻。 |
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37. | momentary power failure |
| 瞬时断电 |
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38. | now in spirits and now in despondency!' |
| 一时兴高采烈,一时垂头丧气 |
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39. | a momentary delay |
| 暂时的耽搁 |
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40. | momentary velocity of plunger |
| 柱塞瞬时速度 |
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