采用DRUDE模型，对多种金属（或者纯水）的介电常数进行数值计算。-By DRUDE model, a variety of metal (or water) in the numerical calculation of the dielectric constant.

利用Drude-Lorentz 模型设定金属的介电常数和利用Debye-Lorentz设定纯水的介电常数-Drude-Lorentz model for the dielectric constant of metals and Debye-Lorentz model for the dielectric constant of pure water