FDD [计] 软磁盘驱动器
- Primary research results show that such data mining methods as clustering, classification, association, time-series analysis and outlier analysis are feasible in the FDD of LRE.
分析表明,聚类、类、联、间序列分析和孤立点检测等数据挖掘方法适用于液体火箭发动机的故障检测和诊断。 - By analyzing the working characteristics of the liquid rocket engine, strategies of applying data mining from the point of view of the data warehouse for FDD of LRE are proposed.
分析了液体火箭发动机的工作特点,提出了应用数据挖掘方法从数据仓库的角度对液体火箭发动机进行故障检测和诊断的策略。 - Compared with the FDD system, TD-SCDMA adopting TDD, has no need of symmetrical frequency bands for uplink and downlink, and enables flexible and convenient planning and use of increasingly scarce spectrum resources.
与FDD系统相比,TD-SCDMA采用时分双工方式,上下行无需对称频段,可以见缝插针,灵活方便地规划使用日益紧张的频谱资源。
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