它们用2英寸的模拟磁带记录并为后代保存。
They were recorded on 2-inch analog tape and stored for posterity.
本文围绕着模拟磁带记录地震仪，如何应用于工程地震领域中，进行基底勘查这个问题，从地震仪的改制原理、模拟磁带记录数据的采集处理，及其实际应用效果三方面进行了论述。
The discussion contained following three aspects:the renovation principle of the seismograph sampling process of the analogtape records as well as the effet of its practical application.
计算机兼容数字磁带(CCT)转换记录装置的功能是把多通道模拟信号高速地转换为数字信号。
The function of CCT (Computer Compatible Tape) conversion record apparatus is to convert multichannel analog signals into digital ones at high speed.
目的：解决生理信息测量时数据采集及取代磁带模拟的记录方式。
Objective: Solving physiologic information acquisition and replacing logging mode of magnetic tape analogue recording.
传统的多通道通信记录设备是由模拟磁带机或数字磁带机构成，设备庞大复杂，价格高昂。
Conventional multi channel speech communication recording systems consist of analog or digital tape recorder with large size and costs.
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.
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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