“当你看到相机能从上面拍摄，很显然对地面上公众也没有进行有效指挥和控制，”他说。
"When you saw the camera view from above, it was clear there was little command and control of the public on the ground," he says.
地面系统提供卫星的指挥与控制，接收和分发有效载荷数据和实时遥感数据，以评估卫星运行情况。
The ground system provides command and control of the satellites, and receives and distributes payload data and real-time telemetry required to assess how well the satellites are functioning.
防空通信系统是保障防空指挥和控制有效性的重要手段，其效能的好坏将直接影响到作战结果。
The air defense communication systems is a important means to guarantee the quality of the air defense command and control, its evaluation will affect the battle result directly.
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