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| 71. | eliptical blade |
| 椭圆叶片 |
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| 72. | blade of diaphragm |
| 光阑叶片 |
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| 73. | blade rotating angle |
| 叶片转角 |
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| 74. | frequency-modulating blade |
| 调频叶片 |
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| 75. | blade shape construction |
| 叶片造型 |
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| 76. | fan-shaped blade |
| 扇形叶片 |
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| 77. | collapsible blade |
| 折叠式叶片 |
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| 78. | foliar analysis |
| 叶片分析 |
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| 79. | compressor blade |
| 压缩器叶片 |
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| 80. | length of blade |
| 叶片长度 |
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