Once the existence of this wave-length had been discovered, it was not long before its use as the uniquely recognizable broadcasting frequency for interstellar communication was suggested.
一旦这种波长的实际存在被发现，提出把它作为星际间唯一可辨认的广播频率就为期不远了。
Interstellar communication
原声例句
新概念英语.英音版.第四册(译文)
英语百科
Interstellar communication
Interstellar communication is the transmission of signals between planetary systems. Sending interstellar messages is potentially much easier than interstellar travel, being possible with technologies and equipment which are currently available. However, the distances from Earth to other inhabited systems introduce prohibitive delays, assuming the limitations of the speed of light. The potential receipt of replies to communications by such means is estimated to be many human generations away, at best.
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