提出了用8031单片机及相应接口电路来完成系统动态频率特性测试的方法，给出了硬件的电路原理图，介绍了软件设计。
A method for measuring the dynamic frequency characteristics of a system with 8031 single chip microcomputer was presented, the circuit diagram was given and the software designing was introduced.
提高异步机的效率可降低其转差率，从而改善系统动态频率特性的结论。
Conclusion is reached as: increasing the efficiency of asynchronous motor can recede its slip and improve dynamic frequency characteristics.
本文对电力系统的频率特性进行了分析，指出电力系统频率特性可分为静态频率特性和动态频率特性。
This paper analyzes frequency characteristic of power system, and points out that it is classified into static and dynamic.
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