天线矩阵的无线电观测结果以红色显示。
The Very Large Array observations show the radio emission in red.
给它安装无线电设备是很困难的，而且仅凭肉眼观测也太不可靠，无法对它的行为进行确切的观察。
Attaching radio devices to it is difficult, and visual sightings are too unreliable to give real insight into its behavior.
人造卫星的精确轨道参数将由无线电和光学观测站测量得出。
Accurate measurement of the orbit parameters of the artificial satellite was provided by radio and optical stations.
人造卫星的精确轨道参数将由无线电和光学观测站测量得出。
Accurate measurement of the orbit parameters of the artificial satellite was provided by radio and optical stations.
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