查询词典 navigation aid

The third chapter studies the process of dynamic simulation and assembly based upon geometric constraints and probability set. Improvements of the constraint recognition and confirmation, as well as movement navigation are proposed. Real time interference detection is implemented.

第三章研究了基于几何约束可能集合的动态仿真装配零件的过程，改进了约束识别、约束确认和运动导航的算法，实现了实时干涉检测。

Based on this method of dividing data into blocks in the horizontal and the multi-levels in the vertical direction, the modelling and representation of geometric and topological road data are set out in detail. As well, their support for the core functions of the navigation system is analyzed.

通过应用这种水平方向分块、垂直方向分层的方法，研究了几何道路数据和拓扑道路数据的建模与表达，并分析了它们对导航系统核心功能的支持。

This field is essential to navigation, communication, geophysical exploration and many others.

地壳磁场是地磁场的重要组成部分，对导航、通信、地球物理勘探等有重要意义。

The navigation constellation composed of eight inclined globosity synchronous orbit satellites is designed.

设计了由八颗倾斜圆轨道地球同步卫星组成的导航星座。

GPS (Navigation Satellite Timing and Ranging Golbal Positioning System) is of properties for its high precision,quick speed for observations , cheapness and simplicity for its operation and so on. It s widely used many areas including surveying and mapping.

GPS(Navigation Timing and Ranging Global Positioning System)全球导航定位系统以其定位精度高、观测时间短、实施费用省、仪器操作简便等优良特性被广泛应用于测绘等众多领域。

It is of great importance to develop and apply the GPS navigation system into the vehicle to society.

因此，车载GPS导航系统的开发与应用对社会和经济发展具有重要的意义。

Therefore, it is worth researching GPS and is meaningful to the navigation positioning technique in our country.

因此对其进行深入研究是十分有必要的，而且对于我国的导航定位技术也具有借鉴作用。

Precise gravimeter is an important equipment for improving the precision of inertial navigation systems.

高精度重力仪是提高舰船惯性导航系统精度的重要设备，其重力传感器信号检测回路的性能决定着仪器的精度。

The two sub-systems composing of airborne vector gravimetry system are discusseded in detail, which are strap-down inertial navigation system and global positioning system.

讨论了组成矢量测量系统的两个子系统：捷联惯性系统和卫星定位系统。

The fundamental principle of inertial navigation is based on the principle of equivalence of inertial mass and gravitational mass.

惯性导航的测量原理基于惯性质量和引力质量等效原理。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。