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| 41. | estimation sampling |
| 估计抽样 |
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| 42. | representative sampling |
| 代表性抽样 |
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| 43. | criterion for sampling |
| 抽样准则 |
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| 44. | agriculture sampling |
| 农业抽样 |
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| 45. | plan of sampling |
| 抽样方案 |
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| 46. | exceptional sample |
| 例外抽样 |
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| 47. | unitary sampling |
| 单个抽样 |
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| 48. | diagnostic sampling |
| 诊断抽样 |
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| 49. | traverse sampling |
| 沿线抽样 |
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| 50. | duration sampling |
| 时限抽样 |
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