Mottled 发表于 2025-3-21 17:54:09

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在前面 发表于 2025-3-21 21:59:45

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灌输 发表于 2025-3-22 00:35:53

https://doi.org/10.1007/978-3-642-71581-5forest; growth; illustration; mutation

显示 发表于 2025-3-22 05:13:07

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Mitigate 发表于 2025-3-22 08:45:57

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SEMI 发表于 2025-3-22 14:32:04

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Aspirin 发表于 2025-3-22 17:55:50

Ratio Estimators in Simple Random Sampling,In discussing the theories of Simple and Stratified Random Sampling we have not stipulated that the sampling units should be of equal size. Evidently, the latter may be mutually equal or unequal.

不能平静 发表于 2025-3-22 22:38:27

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cloture 发表于 2025-3-23 04:15:53

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anthropologist 发表于 2025-3-23 07:06:26

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查看完整版本: Titlebook: Sampling Theory for Forest Inventory; A Teach-Yourself Cou Pieter G. Vries Book 1986 Springer-Verlag Berlin Heidelberg 1986 forest.growth.i