卫星系统

SLR is one of the important space geodetic advanced techniques. It provides precise range between a laser station and a satellite that is equipped with retroreflectors. In the dissertation, the precis orbit determination on SLR technique is researched.

SLR技术是现代空间大地测量最先进技术之一，它可以为人造卫星提供精密的距离观测，本文系统地研究了SLR技术在卫星精密定轨中的有关技术问题。

The probability distribution three-state models of field strength and its probability distribution images under different environments,which are suitable for LEO mobile satellite communication system , are established in this paper.

建立了一种适用于低轨卫星移动通信系统的场强概率分布三状态模型和不同环境下的概率分布模型曲线。

The export variant of the P-12 short-range ballistic missile is armed with a medium-stage global positioning system guidance device and has a circular error probable, or CEP, of 50 meters (164 feet).

出口的变体为P -12短程弹道导弹是武装起来的一个中等阶段，全球卫星定位系统制导设备，并有一个圆概率误差，或临选， 50米（ 164英尺）。

The safety detection methods of the rocked propellent in the launch ing field were also discussed.

并讨论了卫星发射场推进剂安全监测方法，液体推进剂的3级卫生防护措施，液体推进剂中肼类推进剂的急性、亚急性、慢性毒性及对中枢神经、血液、循环、消化、呼吸是否、免疫、肝脏、肾脏、皮肤、眼等器官系统的毒理学和遗传毒理学。

This paper discusses some problems in the design of the gas flow probe on the satellite propulsion system.

介绍了卫星推进系统气体流量探头设计中的几个问题。

The research area is located within the north service net of the national e-GPS base stations network, feasible discussion of using to Supplementary control survey and direct to transact the land resurvey with the VBS-RTK technique.

本研究利用全国性e-GPS卫星定位基准站即时动态定位系统北区服务网为基准网，探讨以VBS-RTK定位技术应用於图根测量及直接办理土地复丈之可行性。

A new kind of excitation source model, which is more approximate practical situation, is presented. Based on the results, the input impedance, gain and directivity of a rhombic antenna is analyzed by using moment method and microwave network theory.

针对卫星通信拥挤、短时无法补充的缺陷，提出了一种新的更接近实际的平衡激励源处理方法，并在此基础上利用微波网络理论与矩量法相结合，系统地分析、计算了菱形天线的输入阻抗、增益及方向特性。

The evolution course of Chinese solid rocket propulsion technology for space missions since 1950s is presented.

叙述了 2 0世纪 5 0年代以来中国航天固体火箭推进技术的发展历程，介绍了 9种最具代表性的固体火箭发动机的技术特征、研制过程、地面试验和飞行情况，这些发动机分别应用于中国的探空火箭、运载火箭上面级和应用卫星变轨系统。

Settling into the car, I was impressed with the spotless presentation of the Statesman, its roominess and absolute comfort, the GPS navigation system and the "champagne" and the champagne flutes.

当我坐上车后，我对车里完美的布置叹为观止，宽敞舒适的空间、先进的卫星导航系统（在公司所有车里都有配备），还配有香槟酒及高脚酒杯。

In addition, the influence of distributed satellites SAR system's parameters on spectral synthesis is also discussed.

此外，该文还讨论了分布式卫星SAR 系统的一些参数对频谱合成的影响。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。