求翻译：其主要任务是：参与制定国家空间技术发展规划；研究、探索和开发利用外层空间的技术途径；承接用户需求的各类航天器和地面设备的研制及提供优良的服务；空间技术成果的推广应用，以及空间技术对外交流技术与合作。所研制的各类航天器在国民经济、国防建设、文化教育和科学研究等方面得到广泛应用。基于各类应用卫星，建立了各种稳定运行的卫星应用系统，取得了显著的社会效益和经济效益。同时航天器研制取得的新技术成果，移植推广到国民经济的各个部门，有力地推动了传统产业的技术改造和技术进步。是什么意思？

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Its main tasks are: participation in the formulation of national space technology development planning; research, exploration and development of the use of outer space technology; user needs to undertake a variety of spacecraft and ground equipment for research and development and to provide excelle

Its main task is to: participation in the development of national space technology development planning; research, exploration and utilization of outer space technology source; user needs to undertake a variety of spacecraft and ground equipment and provide excellent service; application of space te