铁路固定装置。电气牵引电缆用嵌入钢筋混凝内的密排导管。直管构件。
Fixed railway installations. compact ducting in reinforced concrete for electric traction cables. straight units.
论文分析了电力电缆沟道监测系统中嵌入式上位机控制系统的功能需求，设计出上位机的架构。
After a detailed analysis about the functional requirements of embedded host-computer, this paper first design the architecture.
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