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71. | rolling drawbridge |
| 用滚轮的活动桥 |
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72. | rolling average |
| 移动[继动]平均 |
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73. | rolling barrier |
| 滑动栏木; 滑动栏杆 |
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74. | rolling kitchen |
| 随军炊事车 |
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75. | rolling caisson |
| 滚动闸门 |
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76. | rolling direction |
| 轧制方向|滚动方向 |
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77. | rolling capital |
| 经营资本 |
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78. | rolling instability |
| 对纵向轴线的不稳定性|横倾不稳定 |
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79. | rolling diameter |
| 滚圆直径 |
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80. | rolling landside |
| 滚动犁侧板|尾轮 |
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