The Meridian 4 satellite is the fourth in a series of military satellites being launched by Russia to replace the ageing Molniya system.
Meridian4号卫星是俄罗斯正在发射的一系列军用卫星中的第四颗，被用来替代日渐过时的Molniya系统。
The Meridian 4 satellite is the fourth in a series of military satellites being launched by Russia to replace the ageing Molniya system.
Meridian4号卫星是俄罗斯正在发射的一系列军用卫星中的第四颗，被用来替代日渐过时的Molniya系统。
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