介绍了某站场两连续0.6%下坡道的延续进路的电路原理、技术条件及解决的一些实际问题。
The circuit principles, technical terms and solved practical problems of the route with two successive 0. 6% down-gradients are introduced.
介绍新型WXJ25型微电子相敏轨道电路接收器的工作原理，技术条件及维修标准。
The working principle, technical specification and maintenance standard of the new WXJ25 phase-sensitive track circuit receiver were introduced in this paper.
硬件电路设计采用了CPLD技术，将一些数字电路环节集成在CPLD芯片中，为系统的小型化、稳定性、抗干扰性、在线修改和升级创造了条件。
CPLD technology is employed to integrate digital circuit in CPLD chip, which is of great usage to the miniaturization, stability, noise immunity and on-line modification and upgrade of the system.
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