Cowperwood came back many of his principal moments of difficulty. 柯柏乌想起了自己许多主要的困难时期。
Section 1 formulates the Earth's principal moments of inertia and the Earth's flattening; 第一节研究主惯性矩和地球扁率的计算公式;
A formulation to analyse the large displacement problem of a marine riser with two unequal principal moments of inertia of the cross section in the 3-D space is presented. 本文对截面具有两个不相等主惯性矩的海洋石油立管的三向大位移分析作了理论推导。
The Principal Centroidal Moments of the Inertia of Regular Polygons Shape Shadow 正多边形主形心轴惯矩
Earth's Principal Moments of Inertia 地球主惯性矩
However, due to errors introduced by limited word capacity of the computer, the calculated principal modes may suffer serious distortion and the residual moments may jump irregularly from certain rotating speeds onward, so that the calculation would often result in failure. 由于计算机字长是有限的,从某些转速开始,所算得的振型会严重失真,剩余力矩也会出现不规则的跳动现象,从而使计算结果失败。
Change of components of inertia tensors in rotation of coordinates and calculation of principal moment of inertia is particularly complicated. MOHR'S CIRCLE AND AXIS MOMENTS OF INERTIA, INERTIAL PRODUCT 其中惯性矩、惯性积的转轴公式以及主惯性轴和主惯性矩的计算尤为复杂,在教学过程中,是学生学习的难点内容之一.莫尔圆与轴转动惯量、惯性积
The paper is devoted to the Earth's principal moments of inertia and the related issues. 研究地球主惯性矩及有关问题。
Section 3 studies the directions of the Earth's principal axes of inertia, and Section 4 presents the numerical values of the Earth's principal moments of inertia, and of the orientations of the Earth's principal axes of inertia, and of the Earth's flattening. 第三节研究地球主惯性轴方向的确定方法,第四节给出地球主惯性矩、主惯性轴方向和地球扁率的数值结果。
At first the usual feature extraction method is referred, such as principal components analysis, invariant moments and geometrical feature. 首先介绍了基于主元分析、不变矩以及几何特征的特征提取方法。