For instance, radio astronomy allows observations of cosmic microwave radiation, thus offering a way of detecting the edge of the universe.
例如，电波天文学提供了宇宙微波辐射的观察，而能够探测宇宙之边缘。
The Low Noise Amplifier is widely used in Universe Communication, Radars, Electronic Countermeasures, Telemetry and Remote Mapping, Radio Astronomy, Geodetic, Microwave Communications, etc.
低噪放广泛地应用于宇宙通讯、雷达、电子对抗、遥测遥控、射电天文、大地测绘、微波通信等无线电通信系统中。
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