package,pin grid array (PGA)是什么意思

用法例句

GIS raster digitized method with face element in predicting subsidence and its application;

开采沉陷预测的GIS面元栅格数字化模型及其应用

Free Mosaic and Raster Conversion Technique of DEM;

DEM的自由拼接及其栅格转换技术

Modeling of surface runoff based on raster system in GIS forrainharvesting agriculture;

基于 GIS 栅格系统的集水农业地表产流模拟分析

A New Technique on Spatial-temporal Data Fusion and Construction of Grid Data Platform;

基于融合技术的结构性栅格时空数据平台的构建

Firstly,this paper analyzes the significance of road network model based on grid,and puts forward the structure of the model.

分析了公路网络栅格建模对提高交通体系和城镇体系研究精度的重要意义,提出了公路网络栅格模型的基本框架。

Different degrees of credibility were assigned to the sensor information,accumulated in the grids and used as evidence to modify the position of an obstacle using the global grid method and the evidence theory.

分析了水下机器人在标图任务中对传感器关联信息处理的必要性,通过采用全局栅格划分和证据理论方法,把传感器信息进行可信度分配并在栅格中累积可信数,以此作为证据来修正目标的位置,实例证明该方法提高了水下机器人对目标定位的准确性。

Path planning algorithm based on grid method for virtual human;

基于栅格法的虚拟人快速路径规划

With the examples of FANUC7M system and SINUMERIK880 system,this article analyzes and compares the grid methods of returning home used in most CNC machine tools,and makes an assay of the common faults in the period of its returning home with some real examples.

文章以FANUC7M系统及SINUMER IK880系统为例,就大多数数控机床所使用的增量栅格法的回零机制作一个简单的分析及比较,并结合实例对数控机床回零时出现的故障进行了分析。

A new rapid-exploring random tree algorithm for path planning of robot based on grid method is proposed to plan an optimal path for mobile robot in complex environment.

针对复杂环境下的机器人路径规划问题,提出了一种全新的基于栅格法的机器人路径规划快速搜索随机树算法。

The leak location influence was studied utilizing high voltage DC method in simulative landfill site membrane lining of single HDPE adopting two kinds of paving pattern of hexagonal and grid.

利用高压直流电法,对单HDPE膜衬层模拟垃圾填埋场检测电极采用蜂窝状和栅格状2种铺设方式对漏洞定位影响进行了研究,通过2种算法进行了定位误差的比较。

Ecological Assessment in Land Consolidation Project Based on Spatial Analyst of Grid Data——A Case Study of Fenggang,Nankang City in Jiangxi Province;

基于栅格数据空间分析的土地整理生态评价———以江西省南康市凤岗镇为例

Shortest path algorithm confined to conditions in grid data model;

栅格数据模型中附有条件的最短路径算法

The principle and programming method for vector data to grid data in mapinfo using mapbasic and visual basic are discussed, and the design method and examples for some programs are provided.

论述了在mapinfo下将矢量数据转换为栅格数据的原理和开发方法 ,给出了部分程序的设计思路及实例分析。