centroid of section是什么意思

用法例句

Systematic for (n,α) reaction cross sections at 14 MeV;

14MeV中子(n,α)反应截面的系统学研究

Systematic of (n,p) reaction cross sections of 14 MeV;

14MeV中子(n,p)反应截面的系统学研究

P-D back-scattering cross sections and the multi-scattering of protons in solid;

P－D背散射截面及质子在固体中的多次散射

Construction of a database of average cross-sections in Chinese proximal femurs;

中国人股骨近端平均截面数据库的建立(英文)

How to attain defined beam cross-sections of user in ansys;

如何在ANSYS中实现自定义梁截面

The length,fine,cross-section of Gansu hemp were tested and the percentage of the chemical component of it was analysed.

为挖掘大麻价值,带动相关产业的发展,测试了甘肃大麻的长度、细度、截面形状,对其化学成分进行了定量分析,并对纺纱工艺提出了建议。

Analysis of Stress Transformation on Steering Rack Section with Vent Hole;

转向器齿条通气孔截面应力的分析

Development of Optimization Engineering Software for Transformer Core Section;

变压器铁心截面优化工程软件的开发

To Select Guard Wire Section of Secondary Distribution System;

低压配电系统保护线截面的选择

The cross sections of 185Re(n,2n) 184gRe, 185Re(n,2n) 184mRe and 191Ir(n,2n) 190Ir reactions induced by 14.

利用活化方法测量了 1 4MeV中子引起的1 85Re(n ,2n) 1 84gRe ,1 85Re(n ,2n)1 84m　Re和1 91 Ir(n ,2n) 1 90 Ir核反应的截面 。

ln this paper, based on rational Bezier curves, the modeling method of constructing solids from their cross sections is given.

以有理Ｂｅｚｉｅｒ曲线为依据，给出了由截面构造实体的造型方法。

The cross sections for165Ho(n,γ)166 Ho reaction have been measured relative to that ofgold at neutron energies of 203,676 and 974keV using the activation technique,The results were37.

用活化法相对于Ａｕ的中子俘获截面，测量了２０３，６７６和９７４ＫｅＶ中子引起的１６５Ｈｏ（ｎ，γ）１６６ｍＨｏ的反应截面。

Fibrations of congruence of lines and applications of sections;

线汇的纤维化及截面的应用

The few group section is calculated for several in core assemblies,and the parameter section table is ordered by different Gd 2O 3 weight percent, burnup, energy group, and then the necessary sections for in core burnup are calculated with function .

本文介绍的组件均匀化参数计算的处理方法是以先进的燃料组件软件包ＴＰＦＡＰ为基本工具，对于堆内各种类型组件计算少群截面，按Ｇｄ２Ｏ３不同重量百分比、比燃耗、能群等顺序组成参数截面表，再用函数插值法求得全堆燃耗计算所需的截面。

Based on such a background and the soaring development of steel structures in China, the author puts forward a research program on optimization design of steel structural element sections, which is thought to have a broad prospect in practice.

本文正是基于这样的背景之下，并结合当前钢结构迅猛的发展势头，提出了钢结构截面优化设计这样一个具有实际工程应用前景的课题。