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21. | radiation screening centre |
| 辐射甄别中心 |
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22. | development screening service |
| 成长期甄别服务 |
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23. | integral discriminator |
| 积分甄别器 |
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24. | ratemeter discriminator |
| 率表甄别器 |
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25. | multichannel discriminator |
| 多道甄别器 |
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26. | charge discriminator |
| 电荷甄别器 |
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27. | lower level discriminator |
| 下限甄别器 |
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28. | gamma-discriminating counter |
| 伽马甄别计数器 |
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29. | combined screening service |
| 综合甄别服务 |
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30. | zero crossing discriminator |
| 零交叉甄别器 |
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