首先我们看看实验用来记录电磁波信号的设备。
First, let's look at the gadget he USES to record these signals.
信号处理装置及其方法，记录介质，以及程序。
Signal processing apparatus and method, record medium, and program.
野外记录的扫描信号变化时，必须有详细记录。
Detailed note is necessary when field sweep signal is changed.
图表记录器是用于记录各种过程信号和电信号的一种仪器。
A chart recorder is an instrument used to record various process and electrical signals.
图表记录器是用于记录各种过程信号和电信号的一种仪器。
A chart recorder is an instrument used to record various process and electrical signals.
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