4x4造句

• Video wall multi-display 2x2 3x3 4x4 network control ethernet
  多显示平面电视墙2x23x34x4
• This structure represents a 4x4 matrix of
  值的4x4矩阵。
• Since the roads are rough and sandy, it is advisable for travellers to use 4x4 vehicles only
  道路崎岖多沙，旅游者最好驾驶四轮驱动车。
• It is advisable to use only 4x4 vehicles while driving in the reserve since the roads are rough and sandy
  在保护区开车，建议只驾驶四轮驱动车，因为这里的道路崎岖多沙。
• In any season of the year, driving in 4x4 vehicles is advised because the roads in the parks are sandy and rough
  不论哪个季节来，都建议驾驶四轮驱动车，因为公园里的道路崎岖多沙。
• The identity matrix is used as the starting point for matrices that modify vertex values to create rotations, translations, and any other transformations that can be represented by a 4x4 matrix
  单位矩阵是特殊矩阵，将它应用于顶点时，顶点不发生改变。单位矩阵用作某些特定矩阵的起始点，这些特定矩阵修改顶点值以形成旋转、平移以及任何其他4x4矩阵可表示的变换。
• Third, its low cost can push forward the spread of fiber networks . current market value of 4x4 fiber switch is about 28, 000 yuan, and the 8 x 8 50, 000 yuan, but a 4 x 4 start coupling costs only 3000 yuan, and 8x8 5000 yuan
  目前市面上的44的光纤交换机价格大约在人民币28,000元左右，8口的更高达50,000元，而一个44的星形耦合器不过人民币3000元左右，88的也不过5000元。
• During the progress, the result after thinning affects the final effect of vectorization directly . the author designed a thinning algorithm combining 3x3 template with 4x4 templates, which keeps the topology structure of the primary maps successfully
  其中细化算法直接影响到识别的效果，本文提出的33模板与44模板相结合的并行细化方法，成功地保留原图的拓扑结构。
• A 4x4 optical fiber network embedding in composite materials is designed to determine the feasibility of the self-diagnose program . finally, the method of self-repair using hollow optical fiber filled adhesive is put forward . two samples are made to study the performance
  在此基础上设计了一个可以实现损伤诊断的3x3空心光纤网络构成的智能结构自诊断系统，并按照小型化、经济化等要求完成了光源的选择、发光和接受电路的设计、耦合接口和数据采集系统的研究。
• The characteristic of h . 264 standard can be concluded mainly into three aspects . it is more practicable, more adaptive to ip net and mobile system and it improves the key components of coding structure based on hybrid video coding framework . for example, it adds coding mode decision, multi frame prediction, context-based adaptive variable length coding ( cavlc ), 4x4 integer transform, loopfilter, etc . the improvement in performance leads to higher computational complexity in the new standard
  h.264的技术特点可以归纳为三个方面，一是注重实用；二是注重对移动和ip网络的适应；三是在混合编码器的基本框架下，对其主要关键部件都做了重大改进，如多模式运动估计、帧内预测、多帧预测、基于内容的变长编码、44二维整数变换等。
• But digital videos compressed under dvcam format have obvious geometric distortion, compared with analog videos . in order to research this geometric distortion, we analyzed the influence of dct compression on image geometric information by matlab and visual c + + to, and found that more than one pixel distortion can be made under 4 : 1 compression ratio and 4x4 processing block
  为进一步研究这种畸变产生的原因，利用matlab的数字图像处理工具包和visualc++开发的差影法程序对dct压缩给图像像元位置信息带来的影响进行了实验和分析，发现在压缩比为4的情况下，有明显的1个像元以上的几何畸变。
• The system makes up of two parts : subordinate part is the measure instrument, it also is principal part's data collection equipment, it makes use of microcontroller's advantage, it intelligentizes the management and data collection circuit, it has liquid crystal display and 4x4 keyboard, it can work alone on the field, so it is very convenient and ensures the credibility of data sampling; principal part is virtual instrument software on personal computer, the software can be installed in notebook pc and work with subordinate part on the field, it extends the subordinate part's function, the teachers also can use it as demo teaching
  系统的设计借鉴了主从式虚拟仪器设计的思想，系统由主机和从机两部分组成：从机部分即为光合、蒸腾速率测定仪，也是主机的数据采集器，它利用单片机功能全面的优势，使调理电路和数据采集电路智能化，它配备lcd显示器和44键盘，可以独立野外测量，从而使虚拟仪器在保证数据采样可靠的前提下，更加方便实用；主机就是pc机的虚拟仪器软件，既可以安装在笔记本电脑上，与从机组成便携式仪器系统进行实地测量、处理数据，扩展从机功能，又可以作教学演示。
• Applying the theory of polygon expanding and shrinking, a new critical area calculation method for soft and hard faults is given . a total formula is presented by dividing vlsi interconnects into two parts, contacting and conducting path, to calculate its critical area . finally the effect of hard and soft fault of different size defect on circuits is given by calculating soft fault area of a 4x4 shift register
  本文基于多边形膨胀收缩理论给出了一种新的软、硬故障关键面积计算方法，该方法首先将vlsi中的互连线分成导电通道和接触区两部分，然后分别计算其软、硬故障关键面积，最后将这两部分相加起来得到总的软硬故障关键面积。
• Kinematic analysis : by denavit-hartenberg method, space geometry relationship of each pole relative to fixed reference frame can be described with equal index transform, also do space relationship of two adjacent poles with 4x4 equal index . so equivalent equal index transform matrix can be deduced from them . when sportive equations and sportive coordinate frame of workpiece exercise point are set up, the coordinate values of exercise point can be got, the pose and situation of two manipulators are analysed, in the end each joint valiable and its velocity, acceleration are worked o ut
  运动学分析：利用denavit?hartenberg法，用齐次变换描述各个杆件相对于固定参考系的空间几何关系，用一44的齐次变换矩阵描述机邻两杆的空间关系，从而推导出等价齐次变换矩阵，建立两机械手运动方程，确定工件作业点随动坐标系，求出作业点坐标，对两机械手的位姿进行解析，求出两机械手的各关节变量及其速度、加速度值。