查询词典 altitude parallel

The relations among three parallel sections,such as parallel mean curvature vector fields, parallel isoperimetric section and parallel umblic section,on submanifolds in the constantly curved Riemannian manifolds R ~ are studied.

讨论常曲率空间Rn+p中子流形上三类平行截面：平行平均曲率向量场、平行等参截面、平行脐截面三者之间的相互关系。

To the problem that the isotropy and the technological efficiency of the parallel kinematic machine based on Stewart platform are not satisfactory, a novel architecture of 6-DOF 3-dimensional platform parallel kinematic machine (6-DOF 3-D PPKM) based on the 2-2-2-SPS 3-D PPR is presented. The technological efficiency of design of the parallel kinematic machine is analyzed. Its workspace and the effect of design parameters to the workspace volume are studied. By using the submatrices of Jacobian matrix and force Jacobian matrix, the kinematics/mechanics transmission isotropic indices, kinematics transmission indices, load-bearing capacity indices at any configuration of the parallel kinematic machine are proposed, respectively.

分析其结构和装配工艺性，研究其定位姿工作空间及机床结构参数对工作空间大小的影响，基于Jacobian矩阵和力Jacobian矩阵中同量纲元素构成的子阵，提出该并联机床在任意位姿的运动／力学传递各向同性评价指标、运动学传递能力评价指标和承载能力评价指标；基于柔度矩阵中同量纲元素构成的子阵，提出该并联机床在任意位姿的力-位置柔度评价指标、力-姿态柔度评价指标、力矩-姿态柔度评价指标和力矩-位置柔度评价指标；研究各性能指标在定位姿工作空间内的分布情况。

In this paper, mainly from the parallel curves, the definition of the parallel surface to start to discuss the legislation of their sentence, nature, and to study certain aspects of their applications, have been on parallel curves, parallel surfaces at some conclusions.

本文主要从平行曲线、平行曲面的定义入手，讨论了他们的判立、性质，并研究了他们在某些方面的应用，得到了关于平行曲线、平行曲面的一些结论。

The electrostatically actuated membrane is used in this kind of tunable capacitor. Both of two parallel-plate of the new tunable capacitor can deflect when subject to parallel-plate electrostatic actuation, this is different with the novel parallel-plate tunable capacitor which is only one of the two parallel-plate can deflect.

这种可调电容器采用静电驱动金属膜的原理工作，与一般的只有单极板可动的可调电容器相比，这种结构的不同之处在于采用一些复杂的制作工艺，制作出电容两块极板均可动的可调电容器。

Circular and catenary always represent the shapes of minor principal stress soil arch between two parallel walls, but which shape should be used in the calculation of active earth pressure on two parallel walls remains disputed. Considering fully developed wall friction or partially developed wall friction, circular and catenary, the two shapes of minor principal stress soil arch between two parallel walls are theoretically analyzed. According to the shapes of soil arch, the coefficients of earth pressure corresponding to different angle of internal friction and that of wall friction are obtained, and the formula of active earth pressure on two parallel walls is derived.

鉴于计算平行墙间侧土压力时关于土体小主应力拱形的选择尚存在争议，考虑墙土摩擦角充分发挥和部分发挥两种情况，对平行墙间土体小主应力圆弧拱和悬链线拱分别进行了分析，得到了对应于不同内摩擦角和墙土摩擦角的侧上压力系数，以及平行墙间侧上压力的理论公式。

The purpose and significance of the thesis are clarified and the framework of the thesis is brought out. Chapter 2 gives an overall and systematical survey of the development of parallel processing systems. The computing model, program behavior, architecture selection and the performance of parallel processing on four classes of parallel processing systems—multi-processor, SIMD computer, pipeline computer and VLSI array processor are elaborated.

由此，本文的主要内容安排如下：第一章对自适应光学系统及其实现的意义作了简要描述，并着重评述了自适应光学系统的关键部件—波前图像处理机的研究概况，同时阐述了本文的研究目的和意义，进而给出了全文的基本结构框架。

A new design for a 3-DOF parallel manipulator has been conceived in the form of the architecture of the Cassino Parallel Manipulator [3] by using four-bar linkages in the legs and a symmetric design in order to obtain a user-friendly design and easy operation, although parallel manipulators may have complex design and nonintuitive operation.

一台3－DOF 并行操作器的一种新设计已经被以Cassino 并行操作器的建筑的形式设想 [3]为了获得一种便于用户操作的设计和容易的经营通过在腿和一种匀称的设计里使用4 间酒吧的连杆，虽然并行操作器可能有复杂的设计和nonintuitive 操作。

Based on the networked workstation cluster parallel environment of MPI, the main contents of this dissertation are as follows:(1) A networked workstation cluster parallel computing environment is set up. The basic concepts of parallel computing are described. MPI programming is presented.

本文在基于MPI集群环境下，所做工作的主要内容如下：(1)利用工作站构建了网络机群并行计算环境，阐述了并行计算的基本概念，介绍了MPI编程方法。

The so-called parallel computing can be divided into time and space parallel parallel.

所谓并行计算可分为时间上的并行和空间上的并行。

The core of this parallel algorithm is the models and algorithms of coarse-grain space parallel fast decoupled load flow and coarse-grain space parallel linearized load flow proposed in this dissertation based on the decomposition and coordination principle of large-scale networks.

该方法的核心是基于大规模电网分解协调计算原理，本文提出的粗粒度空间并行的快速解耦潮流模型及算法和直流潮流模型及算法。

The quality of both red and white wine depends very much on the wine maker talent and on the quality of the grapes.

他的红酒和白酒的品质，根据酿造者的能力和葡萄的质量，各有差异。

No, I don't want to get drunk before my next match.

" "不，我不想让我的下一场比赛前喝醉了。