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日本专家发明了加快鱼类生长的新方法。他们在鱼塘内安装了一定数量的天然磁铁或电磁铁,结果使塘内的鱼大大加快了生长速度。其原理是,因为磁化能增加溶解氧的浓度,从而能促进鱼类的活动能力。
Japanese experts have invented a new method to speed up fish growth. They installed a number of natural magnets or electromagnets in the fish ponds, resulting in much faster fish growth in the pond. The principle is that because magnetization can increase the concentration of dissolved oxygen, which can promote fish activity.