1) sublayer impedance theory
分层阻抗理论
1.
The sublayer impedance theory is a valid method of analyzing solid-rotor induction motor,and the rotor of surface PM synchronous motor is analogical to composite-rotor induction motor.
分层阻抗理论是研究实心转子感应电机的一种有效方法，表面磁钢永磁同步电机转子结构与复合转子电机具有相似性，文中采用分层阻抗理论对表面磁钢永磁同步电机转子参数分析并讨
2) acoustic impedance layering
声阻抗分层
3) stratification theory
分层理论
1.
The well_posedness of the initial value problem of the Euler equations was mainly discussed based on the stratification theory, and the necessary and sufficient conditions of well_posedness are presented for some representative initial or boundary value problem, thus the structure of solution space for local (exact) solution of the Euler equations is determined.
根据分层理论提供的基本方法,讨论Euler方程的初值问题的适定性,给出了方程的典型初边值问题适定性的判别条件,确定了Euler方程的局部(准确)解的解空间构造,对适定问题给出了解析解的计算公式·
2.
By the stratification theory, a discussion about the stability of a simplified Boussinesq equation appending linear polynomials of unknown functions, and the necessary and sufficient conditions for a well-posed initial value problem is performed.
应用分层理论研究带未知函数线性附加项的简化Boussinesq方程的稳定性, 以及使其初值问题适定的充要条件。
4) the theory of stratification
分层理论
1.
But it can be proved that the viscosity barotropic equation with orographic forcing is “stable” and the solution space possesses stratification structure by the use of the theory of stratification.
带地形作用的粘性正压方程组不是Cauchy-Kowalewska型,但利用分层理论可证明它是稳定的,并且给出解空间的分层结构以及Cauchy问题适定性的判别标准。
2.
Although the inviscid barotropic equation is of Cauchy-Kowalewska type and can be analyzed through Cauchy-Kowalewska theorem,the theory of stratification give more information about the equation such as that it is "stable" and the solution space possesses stratification structure.
带地形作用的无粘正压方程组是Cauchy-Kowalewska型,可用Cauchy-Kowalewska定理分析,但是分层理论给出更多的信息,例如该方程组是稳定的,该方程组的解空间结构以及Cauchy问题适定性的判别标准。
5) theory of variable frequency and variable impedance
变频变阻抗理论
6) canopy resistance
冠层阻抗
1.
Based on the typical metheds of parameterization of canopy resistance,the field mea-surements of stomotal resistance and the vertical distribution of leaf area , three techniques areproposed for scaling the stomotal resistance up to canopy resistance.
根据有关学者提出的几种植冠阻抗参数化的代表性理论，由单叶气孔阻抗实测值，结合叶面积垂直分布资料，提出了３种计算冠层阻抗的合成方法。
补充资料：垂向分层理论
垂向分层理论
stratification theory of grains in vertical direction
ehuix旧ng feneeng Iilun垂向分层理论(stratifieation theory of grainsin vertieal direetion)对重选过程中矿粒群在介质中作垂向分层运动机理的阐释。在重选设备内堆置或铺置的动态矿粒群称作床层。借助介质的垂直流动、沿斜面流动或作回转运动使床层松散，是粒群发生分层转移的先决条件。分层是指矿物粒群按密度差形成不同的矿物层;颗粒的粒度以及形状对分层也有重要影响。对于分层的发生机理，曾经有过多种见解，但归纳起来不外两类观点。一类是动力学分层学说，认为分层是按个别颗粒在介质中的运动差异发生的(见自由沉降速度差分层学说、干涉沉降速度差分层学说);另一类是静力学分层学说，认为分层是粒群整体的内在不平衡因素引发的(见悬浮体密度差分层学说、位能分层学说和重介质分层学说)。前一类学说强调了流体动力对颗粒运动的影响，而忽略了颗粒间的静力作用;后一类学说的立论观点则忽视了流体动力对分层的影响，而将床层内颗粒或颗粒群间的静力差异视为分层的决定性因素。 (孙玉波)
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