铁路客车轴温集中监测报警系统是采用模拟温度传感器和数字式温度传感器进行轴温检测和报警，并完成对轴温检测数据的记录和存储。
Analog temperature sensor and digital temperature sensor are adopted in the axle temperature monitor and alarm system of the passenger train to detect and alarming the axle temperature.
综述了磁带记录在地震观测上的应用，主要介绍了模拟和数字磁带记录和相应的时间服务系统的情况。
The second paper elaborates the application of tape recording to earthquake observations, mainly describing the analogue and digital tape recording and the corresponding time service systems.
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