Based on the generalized London theory, this paper discusses the electrodynamics of superconductor, and further establishes the corresponding electromagnetic wave equation.

在广义协变的伦敦方程基础上讨论了超导体的电动力学特性，并由此建立起超导体的电磁波动方程。

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London like equation is derived for chromo-electronic field.

推导出了色电场的一个伦敦型方程。

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Back in the halcyon days of cheap rail fares, the equation of London mortgage vs.

FORBES: Investing in Public Transport Doesn't Really Solve Anything

In addition, it is asking for London to be taken out of the grant system as it says the needs and population of London distorts the funding equation because of the way deprivation is measured.

BBC: News | UK | Country councils demand rural taskforce