narrow band direct-printing 中文意思是什麼
narrow band direct-printing
解釋
窄帶直接印字-
Radio equipment and systems. narrow - band direct printing telegraph equipment for receiving meteorological or navigational information navtex. technical characteristics and methods of measurement
無線電設備和系統.接收氣象和航海信息用窄頻帶直接列印電信設備.技術特性和測量方法
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