非对称

A detailed investigation was conducted in this paper on the flow asymmetry and its influencing factors over an ogive slender body model, incorporated with surface pressure measurement, skin oil flow pattern visualization, hot wire dynamic signal acquasition and other relevant approaches, in a low turbulence wind tunnel.

现代先进战斗机和战木导弹常具有细长前体，大攻角条件下前体背风面会形成非对称涡结构，从而产生很大的侧向力和偏航力矩，这会严重影响飞行器的可操纵性和飞行安全。

The parallel computing of the preconditioner is the bottleneck for the parallel computing of Krylov Subspace Methods. Based on norm-minimization technique, a parallel sparse approximate inverse preconditioning method is present for the unsymmetric sparse linear systems.

7预条件子的并行计算是利用Krylov子空间方法进行并行计算的瓶颈，我们利用矩阵的Frobenius范数，提出了一种构造一般非对称稀疏线性方程组预条件子的PPAT方法，该方法具有天然的并行性。

Comparing to conventional expansion, our paraxial travel time expansion increases asymmetric terms of the horizontal offset in the expression.

该展开式与通常的旁轴展开式相比，增加了关于空间坐标的非对称项。

Comparing to conventional expansion, our paraxial travel time expansion increases a symmetric terms of the horizontal offset in the expression.

该展开式与通常的旁轴展开式相比，增加了关于空间坐标的非对称项。

An electrostatic deflection-type camera tube has the following advantages: The small electron beam spots over the entire the scanned area provide uniform and high resolution picture, normal beam landing performance and deflection linearity are also excellent.

磁聚焦静电偏转和静电聚焦静电偏转型摄像管具有图像失真小，分辨率高且均匀，电子束易于垂直上靶，阴影小等优点，所以受到人们的重视。但图案偏转电极的形状复杂，非对称场的计算较困难。

This model can be simplified and applied in the simulation of Pogo vibration,whose results can be compared with those...

仿真结果表明非线性模型不仅可以反映出系统每个时刻的稳定性，而且可以再现Pogo振动失稳时发散和收敛的过程，特别是失稳时蓄压器处压力脉动变化的非对称特点。这些都非常符合Pogo振动的观察结果。

In this paper, we use covol-ume method to discrete second order norisyrnmetric and indefinite elliptic problem on a polygonal domain.

本文用有限体积法离散多边形区域上的二阶非对称不定椭圆问题。

Four markets all are affected by negative shock of unexpected component of monetary policy, but in term of the relation between stock return and positive shock of expected component of monetary policy, we can not obtain a significant result.

我们得出的实证结论是：在我国股市发展初期噪声交易假说成立，投资者的噪声交易行为能够解释市场在开始阶段对利好信息敏感，对利空消息冷淡的非对称反应特征。

In order to solve the contact problem of different parts of the blank, a new algorithm for contacting judgment is proposed.

对 SPF/DB加工过程中板材的动态扩散连接问题进行了分析，该过程属于有限元分析中粘着式接触问题，并提出了新的接触判断方法，同时采用 Mindlin壳元，对非对称双室盒形件的 SPF/DB过程进行了模

E., when the bourrelet keeps in contact with, or not in contact with, or impacts with the bore. The patterns of motion of a projectile traveling in an ideal tncreasing twist rifled bore are studied and compared with that of a projectile traveling...

求解了非对称弹丸在渐速膛线理想身管内的运动规律，并将该运动与等齐膛线身管内的弹丸运动进行了对比，由此得出若干结论。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。