The six telecommunications,earth resources and meteorological satellites developed and launched by China in the past few years are in stable operation,and have generated remarkable social and economic returns.
英
美
- 近几年来,中国研制并发射的6颗通信、地球资源和气象卫星投入使用后,工作稳定,性能良好,产生了很好的社会效益和经济效益。