美利体育登录入口官网:GOST R 8.623-2006 国家测量统一性保证体系.相对绝缘体电容率及绝缘体的损耗因数.微波频率的测量规程
State system for ensuring the uniformity of measurements. Relative dielectric permittivity and the loss tangent of solid dielectrics. Procedures of measurements at microwave frequencies