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31. | percussive transitio |
| 震动转接 |
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32. | velocity of vibratio |
| 震动速度 |
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33. | cycle of vibration |
| 震动循环 |
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34. | experience shock |
| 经受震动 |
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35. | vibrating pile driver |
| 震动打桩机 |
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36. | vibrating armature |
| 震动电枢 |
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37. | horizontal motion |
| 水平震动 |
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38. | electromagnetic shaker |
| 震动器 |
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39. | percussion mechanism |
| 震动机构 |
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40. | duration of shaking |
| 震动持续时间 |
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