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71. | preliminary audit |
| 初步审计 |
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72. | preliminary sizing |
| 按尺寸|初选|粗筛选 |
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73. | preliminary thinning |
| 疏伐|抚窗伐 |
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74. | preliminary cleaning |
| 预净化 |
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75. | preliminary vacuum |
| 预真空 |
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76. | preliminary allocation |
| 初步配额分配 |
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77. | preliminary works |
| 准备工程 |
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78. | preliminary canter |
| 赛马前的试跑|正式行动前的准备活动|试车|试航 |
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79. | engineering preliminary |
| 工程准备事项 |
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80. | preliminary correction |
| 初校正 |
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