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31. | sample mechanism |
| 抽样机构 |
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32. | situational sampling |
| 情境抽样 |
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33. | matrix sampling |
| 矩阵抽样 |
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34. | sampled population |
| 抽样总体 |
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35. | release sampling |
| 释放抽样 |
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36. | checking investigation of sampling |
| 抽样复查 |
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37. | repeated sampling |
| 反复抽样 |
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38. | sample population |
| 抽样人口 |
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39. | selective sampling |
| 重要抽样 |
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40. | sampling apparatus |
| 抽样装置 |
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