SGCD型(xing)SF6純度分析(xi)儀長壽命(ming)探測組(zu)件精度高(gao),重復性好內置穩壓閥(fa)和電(dian)(dian)子質量流(liu)量計充電(dian)(dian)電(dian)(dian)池供電(dian)(dian),交直流(liu)兩用