requency distorion 频率畸变
Barcode and radio requency 条形码与射频技术
requency Response 频率响应
clock requency 时钟频率
Posses of requency converter , time controller, ensuring operation process steady and uniform finishing quality;
带有变频调速，保证运转平稳及加工工件的一致性；
This paper analyzes T-shape equivalent circuit, establishes starting torque function equation with the variation of requency and starting current function equation with the variation of requency.
本文通过分析T形等效电路，建立了电机启动转矩随频率变化的函数方程，建立了电机启动电流随频率变化的函数方程；
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