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| radio signal; code; marine code | |||
| cellular signal (The signal between a cellular phone and the mobile operator's network that allows the user to access the Internet and make phone calls using a cellular phone. A telecommunications standard that lets users send and receive messages that include rich text, images, audio, and video) | |||
| wireless signal | |||
| radio-frequency signal | |||
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Funksignal : 16 短语, 2 学科 |
| 电子产品 | 7 |
| 通讯 | 9 |