基本单元

It can handle the collision detection problem with multiple convex polyhedron, multiple moving objects and complex obstacles, report the geometry contact and forthcoming contact, detect the nearest Euclid distance between two objects.

多机器人虚拟生产平台的研究作为先进制造技术中一个最基本的单元和关键技术，不仅具有理论研究价值，而且虚拟生产平台是虚拟制造技术走向实用所必须解决的问题。

The origin、 development and present state of the container ship2. The deformation characters and collapse mode of the container ship3. The basic theory of thin-walled structural mechanics: The bending of the thin-walled beam; The unconstrained torsion of the thin-walled member bar; The constrained torsion of the thin-walled member bar with opening; The constrained of the thin-walled member bar with closed port.4. The calculation of the warp stress in the container ship based on the thin-walled structural mechanics theoryModeling of the hull ladder calculation based on referred mechanics theories of thin-walled member bar, calculation of crankle character of the each section, such as sectional coordinates、 Free twist shear flow、 secondary shear flow、 bend shear flow and so on.

本文主要包括下述六个方面的内容： 1 集装箱船的起源、发展和现状 2 集装箱船变形特征和破坏形式 3 薄壁结构力学的基本理论◇薄壁梁的弯曲；◇薄壁杆件的自由扭转；◇开口薄壁杆件的约束扭转；◇闭口薄壁杆件的约束扭转 4 利用薄壁结构力学理论计算集装箱船的翘曲应力建立船体阶梯计算模型，利用薄壁杆件力学中相关理论，求解各断面单元的弯扭特性，包括：扇性坐标、自由扭转剪流、二次剪流、弯曲剪流等。

Feature is the basic processing and analysis unit of data mining.

特征是数据挖掘的基本处理和分析单元。

A packet is the basic unit of data in a transport stream.

包是TS流的基本数据单元。

Among the 16 approximants, seven of them are new phases. The stable decagonal quasicrystal with a period of 3.72 nm along the tenfold axis is reported for the first time.

高分辨像表明，十次准晶近似相的基本结构单元是由两圈各十个亮像点组成的同心十边形原子团簇。

According to the principle of a certain type aircraft decimeter wave instrument landing system,It provides a FPGA-based design encoding and decoding module of airborne ranging module.

根据某型飞机分米波仪表着陆系统测距单元的基本工作原理，提出了一种基于FPGA的机载测距编译码模块设计方案。

In this dissertation, what under consideration is the dipole array.

本论文中考虑的都是偶极子阵列，但是对其他型式的单元组成的天线阵的口面分布的实现，本论文的基本思想也有一定的指导作用。

Based on the basic theoryof non linear finite element, the author of the paper set up the double non linearfinite element equation based on the updated Lagrangefor mutations forthe 8-node degenerate shell element and considering the nonlinear of geometryand the nonlinear of materials.

本文根据非线性有限元的基本理论，采用基于修正的拉格朗日法描述的八节点超参数壳体单元，考虑几何非线性和材料非线性，推导建立了双重非线性有限元方程，结合混合强化本构关系，编制了非线性有限元计算程序。

In this thesis, the virtual boundary integral equation is based on double layer potential with the virtual density to be determined on virtual boundary. Since this integral equation related to double layer potential only involves the computation of the normal derivative and second normal derivative of fundamental solution, the exponential integral function is not involved in it, so numerical computation for the exponential integral function is avoid.

本文则基于双层位势，引入虚拟矩密度函数来建立虚边界积分方程，并首先对时间变量进行解析积分，在虚、实边界上采用常单元和等额配点离散，该方程只涉及含基本解的法向导数及其二阶法向导数项的计算，对时间变量进行解析积分后，不会出现对指数积分函数的空间变量的积分计算。

PA-226 is same as PA-206 but equipped with two 6 LF driver for better low frequency response.

PA-226的设计与PA-206基本相同，但配置了两只 6 寸低音单元，可提供更佳的低频响应。

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。