Aeronautical ground facilities must be upgraded to match the increased size and performance of future aircraft.
航空地面试验设备必须得到更新以适应未来飞行器尺寸增大、性能提高的要求。
Aeronautical ground facilities must be upgraded to match the increased size and performance of future aircraft.
得到更新以适应未来飞行器尺寸增大、性能提高的要求。
Currently, the production, launching and building of ancillary ground facilities are progressing according to plan.
目前，两颗卫星的生产、发射服务、地面配套建设正按计划实施。
Wind tunnels are important ground facilities for aerodynamic research, and basic research establishment to ensure aeronautics and astronautics of a country keeping ahead in the world.
风洞是空气动力学研究的重要地面试验设备，是保证一个国家航空航天处于领先地位的基础研究设施。
Wind tunnels are important ground facilities for aerodynamic research, and basic research establishment to ensure aeronautics and astronautics of a country keeping ahead in the world.
风洞是空气动力学研究的重要地面试验设备，是保证一个国家航空航天处于领先地位的基础研究设施。
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