“railway communication services”的概念、定义、翻译、参考文献-科学参考

单词	railway communication services
释义	railway communication services Encyclopedia 工学铁路通信释 railway communication services铁路通信业务为满足铁路运输生产和经营管理需要，利用通信技术设备，传送、发射或者接收语音、文字、数据、图像以及其他形式的信息服务与应用。各国铁路运输生产和经营管理需求大体相仿，通信业务需求基本一致。
随便看	sample variable sample variance sample variance computation sample variance distribution sampling sampling acceptance sampling adjustment sampling test sampling analysis sampling and quantization of image sampling and returning sampling autocorrelation sampling by attributes sampling by variables sampling clock sampling control sampling control system sampling design sampling design for metallurgical tests sampling distribution sampling effect sampling efficiency sampling error sampling for metallurgical tests sampling for technological test of ore processing sampling fraction

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