The statistical analysis of spatial interpolation tools in GIS was used to get the grid layer,and then the grid calculation was made to get the ecological environmental quality index of each grid,finally to calculate the proportion of the administrative unit at all levels.
研究选取生物丰度指数、植被覆盖指数、水网密度指数、土地退化指数、环境质量指数,运用层次分析法,以行政区域为单元,计算生态环境质量指数,运用GIS的地统计分析空间插值工具,得到栅格图层,进行栅格计算,得到具体每一点的生态环境质量指数,统计计算各行政单元内各级别所占的比例。
Taking 2000 as the level year,five calculation units as Xidahe irrigation district,mountainous water irrigation district of Liuhe middle stream,well and spring irrigation district of Liuhe middle stream,Hongyashan irrigation district and Dajinghe system were divided,combined with the distribution of water systems.
本文以现状年2000年为水平年,根据流域内的水系分布情况,将流域内划分为西大河山水灌区、六河中游山水灌区、六河中游井泉灌区、红崖山灌区和大靖河系统五个计算单元,对近期水平年2010年的水资源供需平衡进行了分析。
If data calculation method is perfected properly,actual launch coordinates and standard launch coordinates could be coincided.
发射点偏差对弹道导弹射击所引起的偏差可归结为垂线、法线与地心矢径的夹角不同和瞄准方位的不同,利用球面三角知识通过垂线偏差求出垂线与地心矢径的夹角,在诸元计算软件中适当修改一下诸元计算方法,使发射坐标系与标准发射坐标系完全重合,可以完全修正垂线偏差的影响,从而可以大大提高弹道导弹的射击精度。
An arithmetic of imprecise collision detection based on the reach of calculated body element has given in this paper,which has the virtue of efficiency,speedi- ness,and accomplished in pretreatment,but the arithmetic needs much memory to save the reaching information of calculated body element in pretreatment.
介绍了一种基于计算体元可达到性的非精确碰撞检测算法,该算法具有高效、快速、可在预处理阶段完成的优点,但需要占用大量的物理内存空间以保存预处理阶段得到的体元可到达性信息。
To create new calculated cells, click Calculted Cells on the Insert menu.
若要创建新的计算单元,请单击“插入”菜单上的“计算单元”。
The element of an electronic computer that does the actual work of computation is called arithmetic element.
电子计算机进行实际计算工作的单元,称为计算单元。
The calculation pass depth determines how many calculation passes are required to fully compute a calculated cells definition.
计算传递深度决定要有多少计算传递才能完全计算计算单元定义。
A number representing the order of evaluation of the calculated cells.
表示对计算单元求值的次序的数字。
intercomputer communications unit interface
计算机间通信单元接口
The bill footed up to $1,000.
账单结算总计1,000元。
computer assisted learning task
计算机辅助学习单元
The calculation accuracy and the calculation efficiency of hexahedron mesh generated by author are higher than tetrahedron element.
所剖分的六面体单元的-算精度和计算效率都高于四面体单元。
Counts empty cells in a specified range of cells
计算某个区域中空白单元格的数目。
Unable update cell because it contains calculated member %1
无法更新单元,因其含有计算成员 %1
Determines whether the cell calculation is disabled. The default is False.
确定是否已禁用单元计算。默认为“假”。
Counts the number of blank cells within a range.
计算在一定范围内的空单元格数量。
Counts the number of blank cells within a range.\0
计算在一定范围内的空单元格数量。\0
Text cannot be entered into a calculated item cell.
文本不能输入到已有计算项的单元格。
The bill added up to $12.95.
这张账单算起来共计12.95美元。
is the range of cells from which you want to count nonblank cells
要计算其中非空白单元格数目的区域。
Computer software unit testing
GB/T15532-1995计算机软件单元测试
Select which computer this Snap-in will manage
选择这个管理单元要管理的计算机
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