查询词典 navigation key

The major use of GIS is Location Based Service or LBS. Moreover, Mobile Navigation Positioning is the key technology of LBS .

LBS是移动GIS应用的主要方面，移动定位又是实现LBS的一项重要技术。

The key to vision-based navigation is rapid detection and recognition of obstacles. Stereo vision is rapid, accurate and easy to conceal, as it is a passive measurement, which does not emit light and radiation.

在地面自主车的各项关键技术中，视觉导航的主要功能是对各种道路场景进行快速识别和理解，从而确定移动机器人的可行驶道路区域，而视觉导航技术的关键是障碍物的快速检测与识别。

The navigation satellite system is a key space infrastructure, capable of providing services including highly accurate location, velocity measuring, and time transmission, and bringing enormous benifits in society and economy.

卫星导航系统是重要的空间基础设施，可提供高精度的定位、测速和授时服务，能带来巨大的社会和经济效益。

Since the demand for Autonomous Underwater Vehicle ' s voyage ability has improved, how to solve the navigation precision has became a key problem.

随着对自主水下机器人远距离航行能力要求的不断提高，如何提高水下机器人长航导航精度成为亟待解决的问题。

How to provide route to meet the driver's multiple psychological expectations is the key problem of navigation system. The essence of this problem is resource constrained shortest path problem, which belongs to NP-C problems and can not be solved with the traditional shortest path algorithm.

提供满足驾驶员多个心理期望的路径是导航系统该解决的关键问题，其本质是资源约束最短路径问题，属于NP难问题，无法使用传统的最短路径算法解决。

Arithmetic Analysis of Geocentric Vector Based on Earth Sensor for Spheral Model and Oblate Model;2. The accuracy of the measurements of the geocentric vector plays a key role in satellite navigation,but it is affected by the earth oblateness.

卫星利用紫外敏感器和星敏感器进行自主导航的方法中地心矢量的测量精度是影响导航精度的重要因素之一，而地心矢量的测量又受到地球扁率的影响。

In this paper,we analyze the key techniques for the service precision of Global Navigation Satellite System such as time reference,time synchronization,satellite orbit determination,etc.

对影响导航定位系统定位精度的各种因素进行了分析。研究了影响导航定位精度的关键技术问题，如时间基准、时间同步和卫星定轨等。

Key words: celestial navigation ;apparent place ;celestial body in solar system; two body problem

关 键 词：天文导航系统；视位置；太阳系天体；二体问题

The authors review the studies on filling and emptying layout,hydraulic characteristic,pattern of energy dissipater,key technology,and also introduce the constructive experiences and results on filling and emptying system of navigation lock in China,U.

从输水系统布置、水力特征、消能工型式、关键技术等方面对高水头船闸输水系统进行了综述；并介绍了中国、美国、前苏联等航运发达国家的船闸输水系统建设经验和研究成果

And then illustrates the key technology of MES supporting REM,such as the technology of scheduling and dynamitic rescheduling supporting REM,the whole lifecycle materiel management and application integration on resources platform;the technique of automatic navigation and drive in manufacturing on workflow.

介绍了制造执行系统实施的三个关键技术：支持快速扩散制造的生产计划与动态调度技术；基于资源平台的物料全生命周期管理及应用集成技术；基于工作流的制造过程自动导航与驱动技术。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。