查询词典 isotropic

The conditions for bi-stability of isotropic cylindrical shell are derived based on the principle of minimum strain energy.

通过对柱壳变形应变能的分析，利用最小势能原理导出了柱壳实现双稳态的条件。

The radial vibration of isotropic thin elastic circular plates is studied and the equivalent circuit is obtained.

摘要对各向同性弹性薄圆盘的径向振动进行了研究，得出了其等效电路。

Secondly,we develop multiple-dimensional Jacobi polynomial approximations in non-isotropic Hilbert spaces.

本文在建立Jacobi谱方法和拟谱方法数值分析理论的基础上，数值求解这三类问题。

L isotropic, integral turbulence scale parameter

等方性，积分湍流尺度参数 m

Bray (1977) experience formula deal with distribution of principle stress under transversely isotropic rock with single joint, it could interpret distribution of principle stress while changing the laccolith's properties though, the influence proportion within parameters is hard to know.

Bray(1977)经验公式为一套处理单组节理下横向等向性岩体内主应力分布之简单公式，但变化岩盘性质时，仅能了解参数对主应力分布之改变，并无法得知参数间之影响比例。

An approach divides the sonoluminescence from the sound field by using test tube with black plastics and the isotropic light trap is applied to collect sonoluminescence in the trough which irradiates hematoporphyrin out of the sound field.

从超声空化产生的声致荧光出发，采用试管外包裹黑色塑料的方法将大量生理盐水的声致发光与其余能量形式分开，在相同条件下，使用集光球收集水槽中盐水的声致荧光，将荧光引出声场单独作用血卟啉。

an approach divides the sonoluminescence from the sound field by using test tube with black plastics and the isotropic light trap is applied to collect sonoluminescence in the trough which irradiates hematoporphyrin out of the sound field.the results of our work suggest that ultrasonically induced cavitation produces nonequilibrium high temperature, emits shock waves, together with the cavitation energy in hematoporphyrin solution activating hematoporphyrin.

从超声空化产生的声致荧光出发，采用试管外包裹黑色塑料的方法将大量生理盐水的声致发光与其余能量形式分开，在相同条件下，使用集光球收集水槽中盐水的声致荧光，将荧光引出声场单独作用血卟啉。结果表明，水槽中盐水的空化热能、冲击波与试管中血卟啉溶液空化产生的高温、高压、冲击波等多种能量的合作用激活血卟啉。

To the problem that the isotropy and the technological efficiency of the parallel kinematic machine based on Stewart platform are not satisfactory, a novel architecture of 6-DOF 3-dimensional platform parallel kinematic machine (6-DOF 3-D PPKM) based on the 2-2-2-SPS 3-D PPR is presented. The technological efficiency of design of the parallel kinematic machine is analyzed. Its workspace and the effect of design parameters to the workspace volume are studied. By using the submatrices of Jacobian matrix and force Jacobian matrix, the kinematics/mechanics transmission isotropic indices, kinematics transmission indices, load-bearing capacity indices at any configuration of the parallel kinematic machine are proposed, respectively.

分析其结构和装配工艺性，研究其定位姿工作空间及机床结构参数对工作空间大小的影响，基于Jacobian矩阵和力Jacobian矩阵中同量纲元素构成的子阵，提出该并联机床在任意位姿的运动／力学传递各向同性评价指标、运动学传递能力评价指标和承载能力评价指标；基于柔度矩阵中同量纲元素构成的子阵，提出该并联机床在任意位姿的力-位置柔度评价指标、力-姿态柔度评价指标、力矩-姿态柔度评价指标和力矩-位置柔度评价指标；研究各性能指标在定位姿工作空间内的分布情况。

Based on the method of matrix transformation used in the compound material mechanics, the anisotropic flexibility matrix of the anisotropic sand with a certain stress state is transformed to be an isotopic one of a certain isotropic reference material with the corresponding stress state, and a corresponding stress matrix is obtained simultaneously.

借鉴复合材料力学中矩阵转换的数学方法，将各向异性砂样的柔度矩阵转化为各向同性等效参考砂的柔度矩阵，同时导出与其相当的应力状态的表达式，以使对各向异性岩土材料的分析可转换为对各向同性状态进行分析，由此可将以前基于各向同性假设的强度条件能够用于各向异性土体。

In isotropic medium the wave velocity of these two types of wave is identical; however, their vibration characteristics are different.

实验测试表明无偏振特性的扭转波在各向异性介质中传播时也会出现两种速度不同的扭转波，速度值与剪切横波的快慢横波速度值一致。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。