空网
- abortive haul
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NASA深空网(DSN)的现状及发展趋势
The Current Status and The Future of NASA Deep Space Network
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由于目标小天体和地面站之间存在较长的通汛延迟,加之小天体的动力学环境复杂多变,传统的基于深空网的导航、制导与控制(GNC)模式已不再适合探测器着陆小天体。
Due to long communication delay between target asteroid and base stations and complex mutable dynamic environment of small body , the traditional GNC mode based on deep space network ( DSN ) is no more suitable for landing spacecraft on small body .
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美国深空网的同波束干涉测量技术
Same Beam Interferometry Instrumentation Technology of American Deep Space Network
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美国深空网的无线电跟踪测量新技术
New Radiometric Technologies of DSN of the United States
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深空网伪码测距技术研究
Research on Pseudo-noise Ranging Technologies for DSN Network
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深空网及其应用
Deep Space Network and Its Applications
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详细介绍了美国深空网的发展过程、目前的状况以及未来的主要发展计划。
This paper introduces the development history , the current status and the future plans of NASA DSN .
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然后我们根据深空骨干网的特点和现有技术在OPNETModeler上搭建了一个仿真平台,并在此平台上主要研究骨干网的路由协议。
A simulation platform specially designed for routing algorithms on the simulator OPNET Modeler is completed according to the deep space network characteristics and available technologies .
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可装运各类货物的近300艘船舶构成了NYK极具创新精神的海、陆、空运输网。
Some 300 ships for every type of cargo are part of NYK 's innovative sea , rail and air transport networks .
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对空警戒网有效探测范围的计算方法
Calculation methods about the effective scope of the anti - aerospace alert net
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我国深空测控网建设步伐加快2016年将全面建成。
China to have deep space monitoring network in2016 .
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中国深空测控网建立方案的研究
Research on the Establishing Project for Chinese Deep Space Surveying and Control Network
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然后在此技术基础上提出了民航空-空通信网的概念,并对其构建方式进行了探讨。
Then it proposes the concept of air-air communication network , and investigates the way to build this network .
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本文首先系统地介绍了深空骨干网的网络结构以及协议栈,并分析了现有的协议在深空网络的适用性。
In this paper , infrastructures and protocol stack of deep space network are firstly introduced with the applicability of traditional protocols analyzed subsequently .
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针对分布式对空监视网中混合式传感器管理结构存在的问题,提出了基于多代理技术的混合式传感器管理结构。
For the existing problems in the hybrid sensor management architecture of netted air surveillance sensors , a multi agent based hybrid sensor management architecture is proposed .
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他周围放着背包、夹克、一个空捕鱼网、他的自行车和出发前在家里花园里挖出的两听虫子。
Around him lay knapsack and jacket , an empty catch-net , his bicycle , and two tins of worms dug from the plot of garden at home before setting out .
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给出了空警戒网对不同高度、不同反射面目标有效探测范围的计算方法,可应用于对空警戒网有效探测范围的评估。
The calculation methods about the effective detection scope of the anti-aerospace alert net to the different air-targets are given . The methods can be applied to the assess of the detection scope of the anti-aerospace alert net .
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深空骨干网由于具有长时延、非对称性链路、不连续的链路等独有的特点造成了深空网络研究的复杂性。
The deep space backbone network has the distinctive characteristics such as very long propagation delay , link asymmetry and intermittent connectivity , hence routing through the backbone network present many challenges that are not presented in traditional networks .
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对空雷达情报网生存能力综合评估方法
Synthetical Evaluation Method for the Survivability of Radar Net
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大型空压机因网压波动而停机的解决措施
On overcoming the stop caused by oscillation of net voltage of large compressors
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特厚煤层上覆采空区下锚网索耦合支护
Combined Support with Anchor Net and Cable Under Goaf Upper Thick Coal Seam
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地面对空监视雷达网体系结构研究
Research on the system structure of surveillance radar net
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沿空巷道锚网梁索支护技术的应用效果分析
Analysis of Application Effectiveness of Support with Anchor Cable Network at Gob-side Entry
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现代通信系统是陆-海-空三维通信网,三维通信网的组成主要制约于水下通信。
Modern communication system is a land-sea-space three-dimensional communication network whose realization is mainly restrained by underwater communication .
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难道因此他们就应时常倒空自己的网,无情地屠杀万民?
For this cause therefore he spreadeth his net , and will not spare continually to slay the nations .
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中国空压机设备网的产品分为正副厂两类,正厂配件均为品牌空压机厂家原产,凭借上海集团公司的采购优势,业已与各大品牌空压机生产厂家建立的长期良好的关系;
The goods of its deputy factory are manufactured by the Group Company in Shanghai with the principle of not infringe the Trademark Right of brand air compressor manufacturers .
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文中给出了一种Petri网语言的Pumping引理,证明其对任意无空标注的Petri网语言都有效,并且正规语言的Pumping引理是此引理的一种特殊形式。
This article gives a Pumping Lemma of Petri net language which is proved to be effective to all Petri net languages without empty-label and the Pumping Lemma of regular languages actually is a special format of the Lemma .
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沿空煤巷锚网与工字钢腿联合支护技术
Combined Supporting Technology of Bolting and I-bar in Roadway along Gob
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大断面沿空掘巷锚网索与U型棚腿联合支护技术
Technique of Large-section Gob-side Entry Driving Cable Anchor and U-Shaped Booth Lag Joint Supporting
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综放异形煤柱沿空留巷锚网支护与加固技术研究
Support and reinforcement technique for the protected irregular pillar and remained gateway along fully mechanized top caving mining face