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71. | video beam televisio |
| 象束电视 |
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72. | beam position recorder |
| 束位记录器 |
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73. | beam-addressed display |
| 束寻址显示 |
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74. | cesium beam tube |
| 铯束管 |
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75. | beam-defining aperture |
| 限束小孔 |
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76. | narrow-beam sounder |
| 窄束探测器 |
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77. | remainder of beam |
| 剩余束流 |
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78. | expanded beam lens |
| 扩束透镜 |
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79. | cross beam technique |
| 交叉束技术 |
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80. | anti-neutrino beam |
| 反中微子束 |
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