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

结果在钉螺血淋胞中的伸展胞胞浆中可见呈棕色颗粒的ACP阳反应物,而圆形胞胞浆中未见呈棕色颗粒的ACP阳反应物。