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日本科学家经过长期研究,发明了二氧化碳和氧气运鱼法。在放鱼的池子或容器里注入5％的二氧化碳和50％的氧气,可使鱼处于睡眠状态达30小
Japanese scientists after long-term research, invented the carbon dioxide and oxygen fish law. Fish in the pool or container into the 5% of carbon dioxide and 50% of the oxygen, the fish can sleep at 30 small