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51. | specimen of breath |
| 呼气样本 |
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52. | sample generator |
| 样本产生器 |
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53. | sample selection |
| 样本抽选 |
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54. | an advance copy |
| 新书样本 |
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55. | probability sample |
| 概率样本 |
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56. | sample probability |
| 样本概率 |
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57. | statistical sample |
| 统计样本 |
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58. | atmospheric sample |
| 大气样本 |
|
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59. | sample evidence |
| 样本根据 |
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60. | screening sample |
| 筛选样本 |
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