statistic sampling
| investigation method
| statistic sampling abbr. | |
| hydroel.st. | 统计抽样 |
| investigation method abbr. | |
| market. | 调查法 |
| |||
| 统计抽样 | |||
| 统计采样 | |||
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statistic sampling : 6 phrases in 3 subjects |
| Agriculture | 1 |
| Statistics | 1 |
| Technology | 4 |