permittivity

柯林斯词典

permittivity /ˌpɜːmɪˈtɪvɪtɪ/

• 1. N a measure of the response of a substance to an electric field, expressed as the ratio of its electric displacement to the applied field strength; measured in farads per metre 电容率 ( symbol: ε)→see also relative permittivity ,electric constant

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