Thanks to the rapid development of digital technology, novel digital ultrasonic detector is becoming the main method of rail test.
随着数字技术的进步，新型数字式钢轨超声探伤仪将成为我国铁路钢轨检测的主要手段。
A constant pressure rail test system was built and the experimental research was carried out.
建立液压变压器恒压网络实验测试系统，并开展液压变压器的性能测试研究。
A constant pressure rail test system was built and the experimental research was carried out.
建立液压变压器恒压网络实验测试系统，并开展液压变压器的性能测试研究。
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