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71. | multiple jet flow |
| 组合射流 |
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72. | jetting assembly |
| 喷射组合 |
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73. | motor combination |
| 电动机组合 |
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74. | non random assortment |
| 选择组合 |
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75. | mixed assemblage |
| 混合组合 |
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76. | pattern shot holes |
| 炮井组合 |
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77. | modular fixture |
| 组合夹具 |
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78. | multiple lifting appliance |
| 组合起重机械 |
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79. | pattern geophones |
| 检波器组合 |
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80. | ordered system;arrangement |
| 组合;配合 |
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