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81. | aligned composite material |
| 定向复合材料 |
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82. | directional emissivity |
| 定向发射率 |
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83. | directional orientation tool |
| 定向工具 |
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84. | surface orientation |
| 表面定向 |
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85. | directional radiatio |
| 定向辐射 |
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86. | directive structure |
| 定向构造 |
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87. | directional vane |
| 定向叶片 |
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88. | analytical orientation |
| 解析定向 |
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89. | directive septum |
| 定向隔膜 |
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90. | directivity index |
| 定向指数 |
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