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近年来,我国对虾养殖生产发展迅猛,产量连年翻番,总的形势是好的,但发展中也出现了一些新的情况和问题,如成本上
In recent years, shrimp farming in China has witnessed rapid development and production doubled year after year. The overall situation is good. However, some new situations and problems have emerged in the development such as cost