air void ratio是什么意思

用法例句

In this paper, the magnetic network model of hybrid step motor is eslablished according to the air gap rate permeance method, and the expression of the harmonic back EMF is deduced.

利用气隙比磁导法建立了混合式步进电动机的磁网络模型，推导出谐波反电动势的表达式。

The magnetic circuit of the motor is analyzed using the gap specific permeance method and the equivalent magnetic network equations are formulated with due consideration of the saturation efect in the teeth.

这种方法在分析电机的磁路时，将电机齿部的饱和效应和气隙比磁导法结合起来考虑，建立起电机的等值磁网络方程。

A study of characteristics of gas gap heat switch and pressure adjustment;

气隙式热开关的特性研究及压力调节

Finds out the Gap index that is used to judge the gas gap between the cooling wall and the carbon brick through the theory analysis and experimental research,calculates the value of Gap and confirms it reliable.

通过理论与实验研究找出一种判断高炉冷却壁出现气隙的指标Gap,计算出在不同气隙情况下Gap的取值,验证气隙指标Gap的可靠性。

Study on a new magnetolastic torque sensor with resistablity to air-gap variation;

新型抗气隙干扰磁弹性扭矩传感器的研究

Analysis of variation in air-gap between rotor and stator in high-speed motorized spindle;

高速电主轴定转子的气隙变化及影响因素

In order to optimumly select the third harmonic winding of harmonic exciting generator, the paper anlayses and calculates the air-gap magnetic field distribution of 12 kW and 50 kW harmonic exciting salient-pole synchronous gererator under no-load and full-load conditions by the finite-element method.

用限元法分析和计算了１２ｋＷ和５０ｋＷ谐波励磁凸极同步发电机空载和负载时气隙磁场分布曲线，分析了三次谐波电流分布规律和三次谐波绕组电枢反应，计算了转子转动情况下的气隙磁密时间分布。