其次，结合电接触理论，设计了接触对的结构形式，确定了接触对的表面涂覆形式。
Secondly, With the link study of electrical contact theory, Designed the structure of the contact pair, And fixed the surface coating form.
运用电接触理论，建立了电容式集流环的电接触模型，并将其与普通集流环的电接触模型进行比较，得出其磨损降低的理论依据。
Using electrical contact theory, the model Capacitive Current Collector is established, to compare with the general one, which reduce the wear and tear of its theoretical basis.
本文根据电热原理和传热学理论推导出了电接触加热时间的计算公式，并通过实验进行了验证。
Based on electrothermal principle and heat transfer theory, a calculation formula of direct electro heating time was deduced in the paper. An experiment was carried out to testify the formula.
本文根据电热原理和传热学理论推导出了电接触加热时间的计算公式，并通过实验进行了验证。
Based on electrothermal principle and heat transfer theory, a calculation formula of direct electro heating time was deduced in the paper. An experiment was carried out to testify the formula.
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