【摘 要】
:
A LM-4B carrier rocket lifted off from the Taiyuan Satellite Launch Center at 11:23 Beijing time on September 27, launching two environmental monitoring satelli
论文部分内容阅读
A LM-4B carrier rocket lifted off from the Taiyuan Satellite Launch Center at 11:23 Beijing time on September 27, launching two environmental monitoring satellites (HJ-2A and HJ-2B) into their preset orbits.rnThe HJ-2A and HJ-2B, two optical remote sensing satellites, will replace the previous operating satellites H J-IA and H J-IB, providing services in the areas of environmental protection, natural resources, water conservancy, agriculture and forestry.
其他文献
《安徽省会经济圈发展规划纲要》对建设以合肥为中心,六安、巢湖为两翼的省会经济圈及安徽未来十几年的发展做出了令人鼓舞的规划.《纲要》的制定过程符合法律程序,《纲要》
In the past two decades,the world's unmanned aerial vehicle (UAV) industry has developed rapidly.Various kinds of UAVs have been used in military and civilian f
The divergence angle of laser beam used in space laser communication is usually no more than 100μrad.Using laser beam with small divergence angle to achieve ac
At 13:40 Beijing time on September 21, a LM-4B carrier rocket lifted offfrom the Jiuquan Satellite Launch Center, and successfully launched the HY-2C satellite
本文旨在依照新制度经济学的分析方法,剖析安徽区域文化的特点,构建在新形势下实施文化强省战略应该选择的方略测度,并提出合理化的建议与设想.
国内外经验表明,产业集群是汽车制造业发展的重要形态.通过规模经济、范围经济、技术外溢、知识和经验的直接交流等途径,产业集群可以有效降低生产和交易成本,促进技术创新.
本文使用1998至2006年的面板数据检验了安徽上市公司管理层能力与经济业绩的关系.笔者通过使用DEA方法得出管理层能力相对得分,在此基础上使用配对样本分析和多元回归模型,研
It is an important scientific research activity in China to carry out near-space exploration and scientific ex periments via aerospace carriers.Early near-space
At 13:40 Beijing time on September 21, 2020, a LM-4B launch vehicle lifted off from the Jiuquan Satellite Launch Center, successfully deploying the Haiyang 2C (
农民工是中国特色的现代化、工业化、城市化的产物和推动力量,对中国农村的现代化建设更是不可替代的,他们在农业现代化、农村工业化、农村城镇化和农民现代化中都发挥着巨大