中频 intermediate frequency 中间频率替代法 intermediate frequency substitution 中间频率替代法 intermediate frequency substitution ..
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This paper presents a simple and easy test method, the tuning method, which is based on the analysis of the test error of the intermediate frequency substitution method which is in common use.
本文在分析了其常用的中频替代法测试误差的基础上，提出了一种简便测试方法—调配法。
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