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| 牲畜调查法; 人口调查法 | |||
| 普查方法 | |||
| 种群数量调查法; 人口普查法 | |||
| 种群调查法; 种群普查法 | |||
| 种群调査法 | |||
| 和群调查法; 国情调查法; 普查法 | |||
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| 种群调查法 | |||
| census method: 2 phrases in 2 subjects |
| Business | 1 |
| Ecology | 1 |
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