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pond culture of crustaceans
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pond culture of crustaceans
Encyclopedia
农学
甲壳类池塘养殖
释
pond culture of crustaceans
甲壳类池塘养殖
利用池塘进行虾、蟹等经济动物养殖的一种生产方式。是人们通过苗种和饵料等物质投入,以及调控养殖环境条件,获得良好经济产出的系统活动。
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sporadic solar γ-ray emission
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sporadin
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