Radar altimeter's high measurement precision is paid attention to all the time.
雷达高度表的高精度测量一直备受关注。
Antenna system maintenance and measurement: precision gang switch and support device.
天调系统维护与测量：精密的同轴开关以及配套器件。
Antenna system maintenance and measurement: precision gang switch and support device.
天调系统维护与测量：精密的同轴开关以及配套器件。
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