The acid phosphatase (ACP) in the blood cells of oncomelania hupensis was observed at the light microscope level by the burstone stained technique.

结果在钉螺细胞中的伸展性阿细胞胞浆中可见颗粒的ACP阳性反应物,而圆形阿细胞胞浆中未见颗粒的ACP阳性反应物。