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71. | "flex-rigid double-sided printed Board, rigid-flex double-sided printed" |
| 刚性双面印制板 |
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72. | solid coupled drive |
| 刚性联接驱动 |
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73. | steel rigid frame |
| 刚性钢构架 |
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74. | "flex-rigid multilayer printed Board, rigid-flex multilayer printed Board" |
| 刚性多层印制板 |
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75. | rigid extensible bar |
| 伸缩式刚性梁 |
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76. | close coupled pump |
| 刚性连接泵 |
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77. | rigid foundation structure |
| 刚性基础结构 |
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78. | rigid double-sided printed Borad |
| 刚性双面印制板 |
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79. | torsional rigidity |
| 抗扭刚性 |
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80. | imperfect rigid connection |
| 半刚性联接 |
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