查询词典 coordinate conversion

Methods: A 3-D coordinate system was designed for skull, based on Frankfurt horizontal plane and analytical geometry method.

以颅骨的耳眼平面为基础定位平面，按解析几何方法设计颅骨的三维空间坐标系。

Establishing the observation coordinate to acquire the horizontal and vertical components of atmospheric wind in the detecting field by the space analytical geometry theory, completing the inversion of the atmospheric wind.

在观测点建立空间观测坐标系，由此坐标系出发根据空间解析几何的理论，推导出观测场内的大气风场的水平面和垂直于水平面上的分量，给出了风场探测的反演方法。

In the modal of computing elevation angle and azimuth angle of satellite,we ignore the impact of precession,nutation and pole shift in the process of coordinate system transformation due to their small effects.

在卫星俯仰角和方位角的计算模型中，针对岁差、章动和极移的影响相对于卫星位置是二阶小量，因此在坐标系转换过程中忽略岁差、章动和极移的影响。

Feature of principal lines spatial distribution: detect the principal lines through edge detecting technology, and then divide the image of palmprint into blocks with same dimension, compute the mean and variance as feature; Feature of palmprint direction: divide the image into sub-images; compute the max angle of projection and coordinate of each sub-image, which stand for the direction and location of the line on the palm; Feature of moment invariants: compute the moment invariants of each sub-image and the whole image as feature.

掌纹主线空间分布特征：利用边缘检测技术检测出掌纹的主线，将图像分割成相同大小互不重叠的子图，提取每一个子图的均值和方差作为特征；掌纹线方向特征：将图像分成不重叠的子图，利用Radon变换求出每一个子图的最大投影角度和坐标，也就是子图内掌纹线的方向和位置，构造特征向量；掌纹不变矩特征：提取图像整体和分割后的子图的不变矩作为特征。

Mean angular acceleration and the increment of angular coordinate as well as the first and second derivative of angular with respect to time is not only the physical quantities which often being used but also important physical quantities.

无限小角位移、有限大角位移、角速度、平均角速度、角加速度、平均角加速度和角坐标的增量以及角坐标对时间的一阶和二阶导数不仅是物理学中常用的物理量，而且也是很重要的物理概念。

Using twodimension model,the radial distributions of dissociation products in coordinate and momentum space and the angular distribution are calculated and analyzed.

使用二维波包模型，计算并分析了解离产物在坐标和速度空间的径向分布以及速度角分布。

First, give some methods for calculating the area of anomalistic area on plane, then deducing the methods special for calculating the sea area such as method of calculating coordinate points and method of counting grids, also, another method of counting pixels.

通过多次实测计算和数据分析，曲面坐标法和数点法的计算结果是较为稳定的、并且精确度高。

Key words: anthropotomy; craniometry; 3-D craniophor; three-dimensional coordinate system of the skull; surgery; imaging diagnosis; anthropology

关键 词：人体解剖学；颅骨测量法；三坐标定颅器；颅骨三维空间坐标系；手术；影像诊断；人类学

Our classmates in the senate have designated their fascinating subo rdinates to coordinate the origination and elimination of the dominant antic ipation.

我们参议院的同学已指派他们迷人的下属协调主导期望的产生及消灭。

The mensuration of target coordinate plays a key role in warfare of the air defence and antimissile ,the detection of target can be improved greatly by floating platform observation.

在防空反导作战中，目标坐标的有效探测是关键环节，通过浮空器观测目标可以有效地提高探测效果。

Pradeep Indulkar, a senior official at the Maharashtra state Home Ministry say 101 human were killed and 287 injured.

马哈拉施特拉邦内政部高级官员Pradeep Indulkar称，有101人在冲突中丧生，287人受伤。

Mark Frei, a senior vice president of West, says 80% of West's homeagents have some college education, compared with 30% of those whowork in office-based call centers.

Frei说，该公司80%在家办公的人员都拥有本科学位，而在公司电话中心工作的人中只有30%拥有本科学位。