The electronic positioning units are ultrasonic electronic positioning units which are arranged on a fixed frame to transfer measure data to a main control computer in a wireless way.
测量仪为超声波电子定位仪，它们安装在固定架上， 将测量数据无线传输到主控计算机。
The electronic positioning units are ultrasonic electronic positioning units which are arranged on a fixed frame to transfer measure data to a main control computer in a wireless way.
测量仪为超声波电子定位仪，它们安装在固定架上， 将测量数据无线传输到主控计算机。
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