求翻译：反射面天线是一种主瓣窄、副瓣低、增益高的微波天线。它广泛应用于雷达、通信、航天、天文等领域中，因此深入研究反射面天线电性能的计算有着十分重要的意义。是什么意思？

Reflector antenna is a narrow main lobe, low side lobe, high-gain microwave antenna. It is widely used in radar, communications, aerospace, astronomy and other fields, so in-depth study of the calculation of the electrical properties of reflector antennas has a very important significance.

reflective surface antenna is one of the mitral valve, tricuspid valve narrow, low-, high-gain of microwave antennas. It is widely applied to radar, communications, aerospace, and astronomy in the area, such as in-depth research, reflective surface of the antenna electrical performance calculation w

The reflecting surface antenna is one kind of main lobe narrow, the secondary lobe low, increases the high microwave antenna.It widely applies in domains and so on radar, correspondence, astronautics, astronomy, therefore studies the reflecting surface antenna electricity performance the computation

Is a reflector antenna mainlobe narrow, low sidelobe, high gain microwave antennas. It is widely used in areas such as radar, communications, aerospace, astronomy, in-depth study of calculation of electrical properties of reflector antenna has very important significance.

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