NBCH Natural Binary Coded Hexadecimal 自然二进制编码的十六进制 NBDP Narrow Band Direct Printing 窄带直接打印 NBE Negative Background Effect 负背景效果 ..
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...丁网 d)的 无线电话，数字选择性呼叫（DSC,Digital Selective Calling)和窄 带直接印字电报（NBDP,Narrow Band Direct Printing)等技术。
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NBDP Narrow Band Direct Printing 窄带直接打印
Narrow Band Direct Printing Telegraphy 窄带直接印字电报
nbd narrow band direct printing 窄带直接打印
narrow-band direct-printing telegraph equipment 狭频带直接印字电报设备
narrow band direct-printing 窄带直接印字
NBDP Narrow-Band Direct-Printing 窄带直接印字电报
narrow w band direct printing 窄带印字报窄带直接印字电报
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