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1.依据以往经验。根据自己或别人过去在类似大小的池塘(或网箱、流水等)中养殖类似鱼类的经验,饲料系数较低,生长良好,较
Based on past experience Based on the experience of others or others who used to breed similar fish in similarly sized ponds (or cages, running water, etc.), the feed coefficient is lower and better than that of others