查询词典 principal axes of stress

Planar motion also requires that axes of all prismatic pairs and all revolute axes be normal to the plane motion.

平面运动需要所有的棱形副的轴和转动副的轴都垂直于运动平面。

No.3: When the valve fully open, the angle between sphere body hole-through axes and valve body hole-throught axes Max.

阀门全开时，球体通孔轴线与阀体通孔轴线的夹角不大于3

This milling machine has fixed cross-rail and column structure. The national patent technology "the new multiple guideway" and CNC universal milling head with AC axes(3axes +2axes) type are applied to it. It can realizes rotate index ±370o at AC axes. Equipped with domestic or imported CNC system and capability, the machine can realize pentahedron machining.

产品采用定梁定柱结构，刚性强；应用《新型复合导轨》国家专利技术和AC轴（3轴+2轴）型数控自动万能铣头核心技术，可实现AC轴±370o自动旋转分度；选配国产和进口数控系统，自动完成多种空间方向的加工，实现五面体加工功能。

The transform matrixes were obtained to converting coordinates between incident plane axes and crystal eigent axes.

刚体中心惯量主轴上任意一点的惯量主轴与刚体的三条中心惯量主轴重合或平行。

The rats were randomly divided into four groups: normal contral group; double-axes rotation stimulation group; the bilateral labyrinthectomy group; group of two-axes rotation stimulation after the bilateral labyrinthectomy.

为了探讨旋转刺激与运动病发生的关系，本研究利用一种复杂的围绕两轴旋转的加速度刺激器刺激大鼠后，观察大鼠全脑内Fos蛋白的表达情况。

Spherical surface clearance vertical angle of axes 0.02~0.65mm, Axes Direction≤0.3mm

球面间隙：轴方向0.025~0.065mm 轴方向≤0.3mm

At first, this paper expounds the order relation and first order logic properties of time axes. Secondly, this paper axiomatically models that using Tense Logic and dynamic logic, which aims at reflecting the properties of axes in fine grain by logical analysis.

随后分别用经典的时态逻辑Tense Logic和动态逻辑对时态数据库的时间轴进行了公理化建模，这样刻画的目的是为了&细精度&地体现时间轴的特点，并借助逻辑的方法对其分析。

Although axiomatic systems and proof method for temporal logic have found so far relatively few applications in the query language modeling of temporal database and that was proved by Gabbay, et al in 1994, the model of time axes still must be built axiomatically, which owns soundness and completeness and depicts the time axes in fine grain.

尽管在1994年，Gabbay等人论证了时态逻辑的公理化系统和证明论方法是不适合于时态数据库查询语言建模的，但是仍需要通过对时间轴的公理化建模，利用公理化系统的可靠和完全等性质对时间轴作&细精度&的语义刻画。

According as the four modes in a symmetric waveguide, that one of modes is symmetric or anti-symmetric about X axes or Y axes, are X polarized or Y polarized odd mode or even mode, we calculated the polarized coupling characteristics using Cassinian curves as boundaries of the couplers.

本文还根据对称波导中对称于或反对称于x轴或y轴的四个模式分别为x偏振或y偏振的奇模或偶模的原理，用Cassinian曲线表示耦合器介质波导的边界，计算了耦合器的偏振耦合特性。

According to the characteristics of cophasal axes, it is easy and effective to use the edge detection method to extract cophasal axes.

根据地震剖面上同相轴具有的性质，采用图像边缘检测方法提取同相轴简单且有效。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。