broadcasting wave length

基本解释

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。
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.
这个波长的存在一经发现，没多久它就被建议用来作为星际通讯使用的唯一可以被辨认的广播频率。
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