GIST 发表于 2025-3-28 15:10:15

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peritonitis 发表于 2025-3-28 22:33:29

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阴谋小团体 发表于 2025-3-29 00:09:17

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CRASS 发表于 2025-3-29 03:36:31

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PANIC 发表于 2025-3-29 10:55:18

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啪心儿跳动 发表于 2025-3-29 13:23:38

Discounting and Capital Values,hasis on explanatory power. The issue of the articulation of different model categories becomes important as models are used to design and engineer changes in the models used by others for different purposes, and as work is done simultaneously with different model categories to achieve a particular

常到 发表于 2025-3-29 17:08:20

Energy Economics: CO2 Emissions in Chinat of aggregating enterprise production or returns across the farm. At the next level, farm analysis accounts for constraints of various resources and for off-farm income and expenditure, requiring an initial inventory of resources. Dynamic production, consumption and investment decisions add complex

阴郁 发表于 2025-3-29 22:39:39

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不发音 发表于 2025-3-30 03:45:44

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GRAZE 发表于 2025-3-30 08:02:06

Interdisciplinary tool for optimizing agricultural production and erosion: a conceptual model, which ensures that social and economic boundary conditions for each of the interest groups in a watershed are considered. It should also serve as a negotiation tool for groups inside and outside the watershed, to allocate the costs and benefits of soil conservation. The development of the conceptu
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查看完整版本: Titlebook: Applications of Systems Approaches at the Farm and Regional Levels; Proceedings of the S P. S. Teng,M. J. Kropff,H. H. Laar Conference proc