查询词典 datum

This paper discusses the vertical datum of single point dynamic and questions concerned of its establishment.

不同的基准所求定的高程未知参数与运动速率参数也不同，基准问题是研究地壳垂直运动的重要内容之一。

Regional anomaly datum in a point is estimated according to the data in some information points around some point.

根据某点周围若干个信息点上的重观测数据估计出该点处的区域异常值，而且这种估计是在满足线性、无偏、最小估计方差条件下求得的。

Five class objects of geodetic data are determined. They are spatial datum object, point object, network object, intersection object and collection object. The object-oriented geodetic data model is established in the paper.

确定了5种大地测量数据的对象类，即空间基准对象、点对象、网对象、关联对象和集合对象，并以此建立了大地测量数据的对象模型。

A new method based on the Maximum Effective Circle is presented using the characteristic of the palmprint that the uniqueness and the invariance to the rotation can be obtained by obtain the datum point.

因此，本文在学习掌纹识别主要技术的基础上，重点分析研究了掌纹识别技术中的不变性特征提取技术，并利用掌纹识别技术具有可通过基准点对掌纹进行定义从而获得旋转不变性和唯一性的特点，在掌纹图像的不变性特征提取方面提出了一种基于最大有效圆的定位方法。

I don't know if you are aware that one of the earliest Western maps of this area was produced by French mariners in the eighteenth century, using Chek Lap Kok, the site of our brand new airport, as the principal datum point.

不知道大家有没有留意到，西方朋友最早期替我们这个地方绘制的地图，其中一张便是十八世纪法国航海人员所绘制的。当时，他们用的主要基点正是我们新机场所座落的赤濸角。

By using middle value of boundary line of water quality grade appraised by traditional biological indexes evaluation as datum point to from the functions of membership, the rationaliza.

通过选取传统生物指数评价结果分级界线的中值作为基准点构造隶属函数，提高了生物指数评价方法的精确性和合理性，提出了多项生物指数模糊评价的基本方法，并在浑江水库的水质评价中取得了较好的应用效果。

The forword part introduces the foundation of letters and visitings system briefly, summarize the learning study of letters and visitings problem, expounds the majer idea, datum using and the point of innovation.

文章的引言部分对新中国信访制度的建立作了简单介绍，综述了有关信访问题的学术研究，阐述了本文主旨、资料应用情况和创新之点。

The floating model is defined with a datum point indicates the model's position. Each kind of models is associated with a set of pose parameters to describe its rotation about the three orthogonal axes and shape parameters to describe its scales along predefined directions.

零维的浮测标拓展到三维的浮测模型，除了具备可调整的三维位置参数外，还依模型种类增加了各方向的伸缩尺度、空间旋转等参数，可想像成一个漂浮在空间中，可移动、旋转、缩放大小以量测地物的模型。

However, if the trigonal control point and datum transformation model do not exist, the result of base station single point absolute location can be used as reference coordinate, the measured result of which can be geo_referenced to remote sensing image using some tiepoints on the basis of the first result above.

例如 ，在利用遥感影像分类时，需要在外业获取用于监督分类的训练样地或是分类结果精度检验样地的大地坐标信息；在进行稀有树种区域分布特征调查时，希望能在遥感影像上标识出每个树的具体位置；发现某河段发生污染时，很可能需要将它的精确位置以线或面的形式显示在其它矢量或栅格图层上。

In this paper, a simple method and procedure is given by which cone radius, journal angle, diameter and leg datum point size of a rock bit can be calculated respectively according to geometric relations of rock bit structure parameters.

本文给出一种根据牙轮钻头结构参数间的几何关系分别计算牙轮半径，牙爪轴倾角，牙掌基准尺寸，牙轮背锥角和钻头直径的方法及程序。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了