The ground - based midcourse defense system , as it is called , will start off with no more than 10 “ hit - to - kill ” interceptors designed to collide directly with incoming missiles in space 在初期，陆基中层防御系统只有10枚以下的击杀拦截载具，设计用来在太空直接撞击并摧毁来袭飞弹。
Removing the pilot from the cockpit means the uav has to be wirelessly connected to its controllers by vulnerable data links , whether via satellites or ground - based receivers 让飞行员离开驾驶舱意味着无人机要通过安全欠佳的数据通信与它的操控者进行无线连接，不论是通过卫星还是地面接收器。
Over the last year three teams , one using instruments on the mars express orbiter and two using ground - based telescopes , say they have detected methane in the martian atmosphere 去年，一组使用“火星特快”探测器，及另外两个通过地面望远镜进行观测的团队，都表示他们在火星大气中发现了甲烷。
According to a spokesman for the national security council , the ground - based , medium - range ballistic missile knocked an old chinese weather satellite from its orbit about 537 miles above earth 据（美国）国家安全理事会发言人说，该地基中程弹道导弹击中了距地球537英里外的一颗中国的旧气象卫星。
Previous maps of the earth ' s gravity relied on the tracking of dozens of individual satellites , launched into orbit for other purposes , and on ground - based sensors at a handful of locations 过去所得的地球重力图，仅能仰赖数十个因其他目的而个别发射的人造卫星，以及仅限于少数几个地点的地面测定仪。
According to a spokesman for the national security council , the ground - based , medium - range ballistic missile knocked an old chinese weather satellite from its orbit about 537 miles above earth 据一位联邦安全会议发言人说，该陆基中程弹道导弹摧毁了在离地面537英里轨道上运行的一枚中国旧的气象卫星。
The report comes from a committee tasked with shaving $ 30 million from the nsf ground - based astronomy budget ? about 15 % of the total budget for the nsf ' s division of astronomical sciences 该报告出自一个以从国家科学基金地基天文学预算中削减3千万美元? ?大约占到国家科学基金天文科学部门总预算的15 % ? ?为任务的委员会。
This study is supposed that the fsk / psk signal is applied to ground - based searching radar , and the radar video returns which are modeled and simulated consist of target returns and clutter returns 本文研究的雷达视频回波信号,是假设采用地面搜索雷达的工作方式时所产生的回波信号,包括对目标信号和杂波信号的建模与仿真。
Foreign ministry spokesman liu jianchao said tuesday that beijing has informed washington of the january 11th test , in which it used a ground - based missile to destroy an aging chinese weather satellite 外交部发言人刘建超星期二说，北京已经告知华盛顿有关1月11号的测试事宜。中国在试验中用陆基导弹摧毁了一颗年久的气象卫星。
With the background of the space ground - based application system , this paper analyses and researches the management and distribution of the data information system . this selected topic has the important realistic meaning 论文以航天地面应用系统为研究背景，分析了航天地面数据信息系统的管理和发布，在选题上具有重要的现实意义。
