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在渔池中投入麦饭石,不但能净化池水,而且还能提高水中的溶解氧和提高鱼的活力,有利于鱼的生长发育。对鱼苗还可降
In the pond into the medical stone, not only can purify the water, but also improve the dissolved oxygen in the water and improve the vitality of fish, is conducive to the growth and development of fish. Can reduce the fry