magnetic recording level 中文意思是什麼
magnetic recording level
解釋
記錄磁平-
The ratio of signal level to noise level ( sn ratio ) is a very important index for vtr and the noise is chiefly from magnetic recording system
信噪比是評價錄像機性能的一個重要指標,而錄像機的噪音主要來源於磁記錄系統。
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