截面

Each section of S cut by a plane perpendicular to the x axis ...

用一个垂直于x轴的平面来切割S，所得的每个截面都是等边三角形。

Especially, as an important consequence, the light intensity on the transverse plane perpendicular to the propagation axis is given.

作为一个重要的特例情况，文中还给出了横截面上的光强公式，这个结果可用来对非傍轴光束的强度二阶矩及M2因子等物理量进行研究。

The first-order perturbation theory is used to the sensitivity profile of the K_ in the fast facility.

采用一级微扰理论研究了宏观实验装置的有效增殖因子K_随截面变化的灵敏度，推导了在球坐标下的灵敏度计算公式。

Using the Poincare surface of section technique, an analysis of a particle motion in the phase plane has been presented.

借助Poincare截面技术，对粒子在相空间的运动进行数值分析。

The paper presents a method of experimental mechanics which is combined traditional electronic measurement with photoelasticity using in online analysis of strength.

本文将电测方法与光弹性方法结合在一起，导出了应用读数应变εd就可以获取准静态情况下结构的载荷P、危险截面位置和最大应力峰值σ_(X_0Y_0Z_0)的理论计算方法，从而为结构的在线强度评价提供一种实验分析方法。

More accurate results were obtained by using the new approach to calculate resonance structure and photoionization cross section.

本文使用多体微扰理论对锰原子及其离子光电离过程中光电离截面和共振结构进行了全面的理论研究和计算。

By the principal of detailed balance, the radiative recombination cross section of single-electron systems have been calculated with photoionization.

这是因为光电离及其逆过程的截面能准确的反映了跃迁特性和快慢程度。

The photoionization cross sections of Al Ⅶ are calculated from the first ionization threshold to the K shell.

由得到的光电离截面，确定了一些自电离态的共振能量和宽度，结果表明，内壳层激发态的自电离宽度较大。

Then, the radar cross section of a metallic target coated with chiral medium is calculated by the physical optics method.

然后，采用物理光学法计算了电大尺寸金属目标在涂敷手征媒质情况下的雷达散射截面。

The Physical Optics method and the Method of Equivalent Currents are discussed starting with the concept of RCS and the basic theory of electromagnetic scattering.

本文从雷达散射截面的概念及基本电磁散射理论入手，讨论了计算RCS的物理光学法和等效电磁流法。

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。