Examination of medical instruments in stomatology departments of hospitals in Zhuhai City found that the positive rates of HBsAg and HBV-DNA were 12.0% and 8.0% respectively, of which, the positive rates of hand piece were 21.8% and 16.4% respectively.是什么意思_Examination of medical instruments in stomatology departments of hospitals in Zhuhai City found that the positive rates of HBsAg and HBV-DNA were 12.0% and 8.0% respectively, of which, the positive rates of hand piece were 21.8% and 16.4% respectively.在线翻译_英语_读音_用法_例句