“25Hz phase detecting track circuit”的概念、定义、翻译、参考文献-科学参考

单词	25Hz phase detecting track circuit
释义	25Hz phase detecting track circuit Encyclopedia 工学轨道电路释 25Hz phase detecting track circuit25赫兹相敏轨道电路具有两个供电单元传送25赫兹交流信号，除从钢轨取得电源外，还需另外供给局部电源，采用调相方式的轨道电路制式。当两个单元同时得到规定相位差的25赫兹交流电源时，轨道继电器吸起，否则落下，用于反映本区段有、无列车两种状态的25赫兹交流信号的轨道电路。
随便看	National Art Gallery of Bahamas National Art Museum of Catalonia National Art Museum of China National Art Museum of Ukraine National Arts National Arts Council National Arts Museum National Assessment of Compulsory Education Quality in China National Assessment of Educational Progress national asset unfreezing scam national assimilation National Association for Stork Car Auto Racing National Association for the Advancement of Colored People，U.S. National Association for the Education of Young Children National Association of College Stores national astro-geodetic network national astronomical data center National Astronomical Observatories, Chinese Academy of Sciences national astronomical observatory National Astronomical Observatory of Chile National Astronomical Observatory of Japan National Astronomical Research Institute of Thailand National Astronomy and Ionosphere Center national atlas National Automobile Quality Supervision and Inspection Center（Beijing Tongzhou）

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