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巢湖是五大淡水湖唯独无钉螺孳生的湖泊,原因何在?我们于1979～1987年对巢湖进行全面地血吸病流行病学调查。现报告如下。一般情况巢湖地处东径117°6′54″～51′46″,北纬31°25′28″～43′28″。主要位
Chaohu Lake is the only five freshwater lake without snail breeding lake, why? We conducted in Chaohu Lake in 1979 to 1987 to conduct a comprehensive epidemiological survey of blood diseases. The report is as follows. In general, Chaohu is located at 117 ° 6’54 “-51’46” east longitude and 31 ° 25’28 “~ 43’28” north latitude. The main position