| 单词 | transmission path |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔downlink〕A transmission path for the communication of signals and data from a communications satellite or other space vehicle to the earth and back.下引线：通信卫星或其它航天器之间传递数据信号的传输线路美国传统〔uplink〕A transmission path by which radio or other signals are sent to an aircraft or a communications satellite.上行路线，向上传输：传向航天器或通讯卫星的无线电或其他信号的传输路线美国传统 |
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