和差分法相比，解析法的数据处理速度快，能满足快速监测、及时跟踪与控制的要求。关键词：汽轮机转子；温度场；
The rate of data management is fast with analytics, as compared with finite difference methods, and therefor, fast monitoring of rotor can be performed.
本文针对这种情况，提出一种用解析法推导特种变压器电抗计算式的方法，该方法快速、简捷、实用。
In order to resolve the problem, this paper proposes a convenient and useful method, which deduced by analysing the mathematic al equations of reactance.
实例证明：解析法适合于线圈电感的计算，它具有高精度、快速的显著特点。
It is proofed that: the analytic is suitable of inductance of coil. It has the notable characteristics of high accuracy and speed.
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