1) system frequency
系统频率，电网频率
2) power system frequency
电网频率
1.
The probability distribution with a Gaussian signal passing through a nonlinear function was discussed by the method of stochastic analysis,and the influence of several nonlinear factors on power system frequency probability distribution were presented.
用随机信号分析的方法研究具有正态分布的随机信号通过几种非线性环节后的概率分布特性,从而对电网中非线性环节对电网频率概率分布的影响进行研究。
4) Power frequency
电网频率
1.
A novel method for measuring the actual power frequency is described.
结果表明 ,上述方法可有效地改进电网频率和谐波的测量准确度 ,具有工程应用价
5) system frequency
系统频率
1.
The process errors caused by g ain,speed error and system frequency feature and the effect of steady sta te position error of response on the imp rovement of processing precision we re analyzed.
根据数控机床进给系统结构模型,导出其解析—数值计算方法,在此基础上针对系统的增益、速度误差、系统频率特性所引起的加工误差以及响应的稳态位置偏差对提高加工精度的影响进行了分析研究,提出了各参数选择的原则。
6) frequency system
频率系统
补充资料：频率计量(见时间频率计量)
频率计量(见时间频率计量)
frequency metrology: see time and frequency metrology
口n IQ liliang顷率频率计皿(f比quency metrolo盯) 计t。见时闰
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条