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National mapping agency Ordnance Survey Team assumed the first of which aerial photography and map-based measurement system for work in rural areas.

国家测绘局第一地形测量队承担了其中的航空摄影和农村基础地图测制工作。

Consequently, it is recommended that vector-based data be used for the characterization of aerodrome features in AMDBs.

因此，建议矢量为基础的数据为特征的机场在 AMDBs 的定性分析。

In this thesis, the nickel based mixed oxides aerogel catalyst was prepared by sol-gel-supercritical drying method and compared with that prepared by IM method.

研究新的技术，制备高性能的用于顺丁烯二酸酐选择加氢的催化剂是具有理论和实际应用价值的课题。

Each radar is integrated onto a large aerostat connected by a tether to the ground-based mobile mooring station and communications processing group.

这两个雷达都被集成到一个大型浮空飞艇上，该飞艇与地面移动停泊站和通信处理集群相连接。

Our aim was to investigate changes in the population-based incidence of intracerebral haemorrhage according to age and likely aetiology.

我们的目标是调查以为人群基础的、依据年龄和可能的病因学的、颅内出血的发病率变化。

A 1995 graduate of the US Air Force Academy, he is currently based at Langley AFB, Virginia.

他1995年毕业于美国空军学院，现在隶属于弗吉尼亚州兰利空军基地。

We will teach you how to start a home based affiliate business .

我们将教你如何开始一个家庭的子公司业务。

With the use of a robust error mapping function, an affine model-based target tracking algorithm is formulated, in which a quasi-Newton's iterative method is implemented in the optimization progress.

算法中使用的"由粗至精"计算策略以图像金字塔数据结构为基础，采用自顶向下的计算顺序，并在每层金字塔上结合对鲁棒性误差映射函数中控制参数所做的逐步降级处理，实现了逐步求精的计算目的。

Affine geometry is often assumed in model-based vision systems because fewer features are required to compute model pose uniquely under affine projection and the perspective projection.

根据三维实体的二维透视图像构造关于该实体的不变因子是一项困难的任务，也是当前将不变因子理论应用于计算机视觉的一个主要目标。

Thismethod adopted affine transformation model and a Lie derivative-based analytical algorithm.We introduced the process and characters in extracting information of biological visionsystem, studied the feasibility of the generalized Gabor function used as receptive fieldfunction in extracting information and analyzed affine transformation group and Liederivatives. Finally, we deduced the mathematical denotation for Lie derivatives, i.e. theinfinitesimal generator of the geometric distortion in affine transformation.

对生物视觉信息提取的过程及特点进行了介绍，其中主要研究了广义Gabor函数作为感受野函数提取初级视觉信息的可行性；对仿射变换作为外界图像信息在视觉成像系统上的投影模型的原理进行了初步讨论；对Lie变换群微分算子用于提取仿射变换不变量的分析方法作了剖析，并推导了该方法中关键部分——仿射变换Lie微分算子的具体表达式，也就是几何变形无限小微分算子的计算表达式，使下一步编程实现该方法成为可能。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐