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。
Due to their simplicity in fabrication and excellent strength to weight ratio , stiffened steel panels are also widely used for construction of land based structures such as box girder and plate girder bridges 由于制作简单且有良好的强度重量比，加筋板也广泛应用于制造陆基结构物如箱梁和板梁桥等。
On the basis of the research on the arresting behavior of the carrier aircraft , the arresting model of the continental rise aircraft as well as its motion analysis is presented in the paper 本文对飞机着陆拦阻的技术进行了较深入的研究,主要是针对陆基飞机,借鉴舰载飞机的拦阻特性进行了拦阻钩的建模及其运动学分析。
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。
Considering characteristics of radio propagating offshore and flexibility of radio area navigation system , when distance is less than 1000km , center frequency of navigation signal should be chosen in 2mhz 综合考虑电波海上传播特性和陆基区域无线电导航系统的机动性,在海上作用距离不超过1000km时,导航信号中心频率采用2mhz频段。
The goal of the programme of action is to address the significant impacts on human health , poverty alleviation and food security caused by the continued degradation of the coastal and marine environment through land - based activities 该行动方案的目标是针对沿海和海洋环境受陆基活动影响造成持续退化对人类健康、减缓贫穷和粮食安全所产生的重大影响。
But china ' s space plans have faced increasing international scrutiny amid fears about a potential space arms race with the united states and other powers since it blew up one of its own weather satellites using a ground - base missile in january 但是，自从在1月使用陆基导弹摧毁了她自己的气象卫星，中国的太空计划越来越面临国际审查，审查意指担心同美国和其他国家潜在的太空武器军备竞赛。
At present mounts of optoelectronic measurement system have mainly two kinds of frame , i . e . altitude - azimuth form and equatorial form . the vast majority of large telescopes built are of an altitude - azimuth pedestal design in order to track fast moving satellites 陆基型光学测量设备目前主要采用地平式和极轴式两种结构模式，由于地平式系统成本低，软硬件成熟度和工作可靠性高等原因，在观测人造卫星的仪器中绝大部分采用地平式装置。
The global programme of action for the protection of the marine environment from landbased activities is a non - binding global agreement , reflecting the resolve of states to address the serious impacts of land - based sources of pollution and physical degradation on the coastal and marine environments 《保护海洋环境免受陆基活动影响的全球行动纲领》是一项不具有约束力的全球性协定，反映出各国应付陆基污染源和水文物理退化对沿海及海洋环境严重影响的决心。
Because of good concealment , strong capability of surprise attack and formidable detervent , submarine has always been the most important component of naval weaponry since it came out . so in naval warfare , an important strategic task is to search for and attack enemy ' s submarines 自潜艇问世以来，由于潜艇具有隐蔽性好、突击威力大、对敌方海上及陆基的作战平台具有强大的威慑力和攻击力等的特点，历来作为海军兵器的重要组成部分，而受到各国海军的重视。
