positive carrier

Results The positive rates of HBV DNA in asymptomatic carrier group, chronic HB patient group and liver cirrhosis group were 42.7%, 91.0% and 50.0%, respectively.

结果在无症状携带组、慢性肝炎组和肝硬化组中，HBV dna阳性率分别为42·7%、91·0%和50·0%。

When the sensor is forward biased at a current of 2 mA, the range of positive temperature coefficient of the sensor resistance is extended up to+ 300 C as a result of the minority current discontinuity and majority carrier injection.

当传感器在2mA的正向偏置电流下，由于少数载流子的不连续性以及多数载流子的注入，传感器电阻的正温度系数（PTC）区拓宽到573K（＋300℃）以上。

A positive feedback hot-carrier degradation caused by positive fixed oxide charges increases the electrical field at the drain edge, which degrades the device characteristics seriously.

由于栅氧化层中的固定正电荷引起正反馈的热载流子退化增强了漏端电场，使得器件特性严重退化。

The carrier rate of HBsAg was 0.28% in the cities, compared with 2.17% among the children in suburbs. Most unvaccinated children were in suburbs, making up the main source of HBsAg positive children.

城区儿童HBsAg阳性率0.28%，郊区儿童HBsAg阳性率为2.17%，说明免疫儿童中HBsAg阳性者的主要来源在郊区。

Study on liver tissue injury from the asymptomatic HBV carrier with sole positive anti-HBc

单项抗-HBc阳性无症状HBV携带者的肝组织损伤研究