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1. | narrow-beam absorption coefficient |
| 窄束吸收系数 |
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2. | Narrow beam condition |
| 窄射束 |
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3. | narrow beam absorption |
| 窄束吸收 |
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4. | narrow beam injection laser |
| 窄束注入激光器 |
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5. | narrow beam geometry |
| 窄束几何条件 |
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6. | narrow beam antenna |
| 窄波束天线 |
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7. | narrow beam conditio |
| 窄射束条件 |
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8. | narrow beam echo sounder |
| 窄束回声测深仪 |
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9. | narrow-beam sounder |
| 窄束探测器 |
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10. | narrow beam flood-light |
| 窄光束泛光灯 |
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