In recent years, a complicated artificial material with negative permittivity and negative permeability has attracted much attention theoretically and experimentally.
最近几年，一种具有负介电常数和负磁导率的人工复合材料在理论与实验上引起了广泛关注。
Negative refractive material is an important and new-style artificial and composite material, in which permittivity and permeability are simultaneously negative.
负折射率材料是一种重要的新型人工合成材料，其主要特征是介电常数和磁导率都小于零。
Compared with regular material, it has some unusual parameters value, simultaneously negative permeability and permittivity.
与常规材料相反，它具有同时为负的介电常数和磁导率，进而具有负的折射系数。
Compared with regular material, it has some unusual parameters value, simultaneously negative permeability and permittivity.
与常规材料相反，它具有同时为负的介电常数和磁导率，进而具有负的折射系数。
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