顶向

Based on this mapping, the processing of visual information is separated into foveal and peripheral channel, or what and where channel, which mainly relates to the tasks of interesting object recognition and fixation point movement respectively.

不同于以往的大多数工作，本文强调了将注意目标的选择建立在基于低级刺激的自底向上注意过程和基于知识的自顶向下注意过程相结合的基础上。

Autonomous system always need to work in complex multivariant environment, e.

控制一个复杂系统有两种方式：自顶向下的还原主义方式和自底向上的行为控制方式。

During the development, the structure and function of the system are consummates by the build of system model, function model and data model.

开发过程中，采用了分布式动态数据库技术和自顶向下，逐步求精的结构化设计方法。

The new memory controller is based on FPGA, and excogitated thinking of top-down in accordance with FPGA design flow program.

本新型存储控制器是基于FPGA的设计方案采用自顶向下的设计思想，遵循FPGA的设计流程实现的。

In the research of the thesis, we make the most of modularization design idea and method of design from top to bottom, use advanced programming tool and program language to develop software of the system.

研究过程中，充分采用了模块化设计思想和自顶向下设计方法，利用先进的编程工具和编程语言完成系统软件开发。

By simulating the switch unit, it can be seen that ATM switch unit that is designed by use of hierarchical design of top down with VHDL can perform the basic function of cell head changing, routing and queuing. If many cells race one output channel, the ATM switch can put these cells into a buffer, then queue and output them. When the broadcast cell advents, it can be delivered to all channels.

本文通过对所设计的基于VHDL描述的ATM交换单元进行仿真验证可以得出如下结论：采用自顶向下的层次化设计、由VHDL描述的ATM交换单元能够实现信头变换、选路和排队三项基本功能；当多个信元同时竞争某一出端时能够对信元进行缓冲存储和排队输出；而且当有广播信元到来时还可以对所有出端进行广播输出。

The module programming technique with designing from top to bottom used fully not only en- hances the software's readability but also gives facilities for adding new functions in ESIPMS written in C++ source code.

其设计指导思想是采用自顶向下的模块化程序设计方式，以增强ESIPMS源程序的可读性及便于扩增新的功能。

The FLEX decoder designed in this paper includes the physical layer block, the date link layer block, the BCH decoder and the SPI interface circuit.

该设计采用自顶向下的设计方法，对FLEX解码系统进行功能层次上的划分，系统主要包括：物理层处理模块，数据链路层处理模块，解码及纠错模块，以及数据接收和发送模块。

The most sensitive part to K ftertilization was in the mid-upper midrib at low positions. The relative value of K content, expressed by Vm/Im, in the midrib between 5th and 1st leaves from top, was used for evaluating the K nutrient status of banana. The sampling part was in the connective zone between midrib and blade.

明确了采用自顶向下计第5叶和第1叶叶脉含钾的比值，来评价香蕉的钾素营养状况；叶脉采样的代表部位为叶片与叶主脉的连接带和采用混合样分析的可行性。

By using the UG top down assembly modeling technology,and optimizing the design parameters of extrusion die for pipe products,the parameters SQL database of extrusion dies was established.Microsoft Visual Studio.net 2003 MFC was chosen as the development platform of the system,and an intelligent parametric design system of extrusion dies based on UG was designed,which can automatically generate 3D extrusion die assembly parts and graphics.

应用UG自顶向下的装配建模技术，对挤出模头进行参数化设计，建立智能挤出模头参数SQL数据库，采用Microsoft Visual Studio 。net 2003环境进行MFC编程，构建一个基于UG的管材挤出模头智能参数化设计系统，在UG中自动生成三维挤出模头零件和装配图。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。