Question 04: what is the magnetic recording?
04问：什么是磁条侧录?。
The basic patent for the theory of magnetic recording dates back to 1886.
用磁录音这一理论的最初专利始于1886年。
Video tape Recorder (VTR) is a sort of video recording equipment using magnetic tape.
录像机是使用磁带进行视频记录的一种装置。
Video tape Recorder (VTR) is a sort of video recording equipment using magnetic tape.
录像机是使用磁带进行视频记录的一种装置。
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