迎合 发表于 2025-3-25 04:19:01
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Pierre Grisvarde conditions of climate changes, shortages of water for irrigated agriculture and degradation of arable land are increasing the demand to improve grain production from rainfed areas. The contribution of rainfed farming to food security in dryland countries can be substantially enhanced through incre我还要背着他 发表于 2025-3-25 15:07:45
P. Habets m./year in 2020..Desalination is now used in more than 120 countries around the world. Several large scale projects demonstrated during the last 30 years that it is now technically and economically feasible to generate large volumes of water of suitable purity through the process of desalination ofminion 发表于 2025-3-25 16:18:16
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Jack K. Halel and related to infrastructure, such as shortage of cold chains, processing facilities and efficient market infrastructure as well as shortcomings in the management and implementation of best practices at different stages of the FSC. Other causes are systematic and also related to policies and regu受人支配 发表于 2025-3-26 01:45:39
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The quenching problem for nonlinear parabolic differential equations,抒情短诗 发表于 2025-3-26 14:43:50
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