轴对称性

The deviation of two corresponding profiles were analyzed and the numbers of flatness and symmetry calculated were compared.

加速器的离轴剂量分布特性，包括射野的平坦度和对称性，是加速器性能的重要指标之一[1]。

The research results have shown that the configuration of the magnetic bearing reduces overall system size, and has high efficiency. The axial and radial suspension forces have great linearity. The symmetrical characteristic strenuously, and movement of every degree of freedom around balanceable position has no coupling and the control flux of every degree of freedom is independent. It is beneficial to simplify and design the controller and the circuit power amplifier. The magnetic bearings operate stably with decentralized PID controllers.

研究结果表明：这种磁轴承结构合理紧凑，效率高；磁轴承轴向、径向悬浮力具有较好的线性和对称性，有利于控制器及功放电路的简化与设计，并获得良好的拉制性能；各自由度运动和磁路几乎没有耦合，采用分散独立的PID控制器实现了磁轴承的稳定工作。

With complex analytical analysis for B, the fixed points of B at real axis and C-plane are found. It is proved that zero is the only attract fixed point and the iteration of B on the complex plane is symmetrical. And the domains of the constringency and the divergence of B are given.

通过对B的复解析分析，得出了B在实轴和复平面上不动点的性质与求解方法，证明了0点为唯一的吸引不动点；说明了B在复平面上迭代的对称性，求出了函数迭代在整数点处的敛散区域。

This new microscopic description makes it possible to construct various configurations and to trace them as a function of rotational frequency or nuclear shape.

但它对于物理问题的描述有如下局限性：核子间的对关联没有被包括在内；对原子核系统外加轴和旋称对称性限制。

In this paper the nonstationary vibration behavior of an unbalanced rotor system, which is assumed to be bending flexible but torsionally rigid, during acceleration or deceleration through the critical speeds is investigated. Influencing factors such as gyrascopic effects, external and internal damping, Supporting mass, damping and stiffness, asymmetry of the shaft crass section as well as anisotropy of the supports are considered.

在理论分析方面，本文考虑了转子的陀螺效应，内外阻尼，轴截面的非对称性，支承的貭量、阻尼、刚度和支承的各向异性等因素的影响，使用分析动力学，建立起严格的运动方程，并考虑了弯曲自由度与转动自由度间的耦合，因而能较精确地分析和描述转子通过临界点时的非定常振动和转速变化規律。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。