脉动量 meaning in Chinese
percent ripple
pulsating quantities
pulsating quantity
undulating quantity
Examples
- Although being superior over the other methods in terms of physical realism , the rans methods , however , involve one major weakness - the effects of the turbulent motion of the mean flow are unknown and must be modeled
尽管求解雷诺平均ns方程( rans )是解决现代空气动力学问题物理上最可信的方法，但它也有一个缺点：平均流动中湍流脉动量的影响是未知的。 - The inverters based on space - vector pwm technique have many good qualities , such as less pulsating torque , higher usage of dc bus voltage , less switching loss , better high - speed regulation performance , so it is applicable for the high - performance motor control system
电压空间矢量pwm技术( svpwm )将逆变器和电动机视为一体，由之控制的变频器具有输出转矩脉动量低、直流电压利用率高、开关损耗小、高速调速性能好等优点，适用于高性能电机调速控制系统。 - The components , working principle , advantages and defects of pwm power amplifier are introduced briefly in the dissertation . the working characteristics of h - bridge pwm power amplifier in double - polarity mode is analyzed qualitatively and qualitatively and the conclusion that fluctuant magnitude and continuousness of armature current are the essential parameters which can be used to evaluate pwm control modes
论文简要介绍pwm功率放大器的组成、工作原理、特点及存在问题；对常见h型双极性模式pwm功率放大器的工作特性作了定性和定量的分析，指出了电枢电流脉动量和电枢电流连续与否是衡量pwm控制方案优劣的两个本质参数。