近年来，天线作为通信、广播、雷达、制导等无线电应用系统的关键部件在功能、设计及制造工艺上都发生了很大变化。
In recent years, antennas that are widely used in communications, radio, radar, guidance systems as crucial components change a lot in its function, design and process of manufacturing.
近年来，天线作为通信、广播、雷达、制导等无线电应用系统的关键部件在功能、设计及制造工艺上都发生了很大变化。
In recent years, antennas that are widely used in communications, radio, radar, guidance systems as crucial components change a lot in its function, design and process of manufacturing.
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