帮忙翻译一句英文Radio waves also travel at the speed of light,and assuming such an automatic messenger picked up our first broadcasts of the 1920's,the message to its home planet is barely halfway there.最后半句怎么翻译?

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帮忙翻译一句英文Radio waves also travel at the speed of light,and assuming such an automatic messenger picked up our first broadcasts of the 1920's,the message to its home planet is barely halfway there.最后半句怎么翻译?
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帮忙翻译一句英文Radio waves also travel at the speed of light,and assuming such an automatic messenger picked up our first broadcasts of the 1920's,the message to its home planet is barely halfway there.最后半句怎么翻译?
帮忙翻译一句英文Radio waves also travel at the speed of light,and assuming such an automatic messenger picked up our first broadcasts of the 1920's,the message to its home planet is barely halfway there.最后半句怎么翻译?

帮忙翻译一句英文Radio waves also travel at the speed of light,and assuming such an automatic messenger picked up our first broadcasts of the 1920's,the message to its home planet is barely halfway there.最后半句怎么翻译?
无线电波的传播速度同光速一样,假设这个自动信使(指无线电波)获得了1920年代我们的首次播音(的信号),这个消息也就仅仅走到了距其所属的星球一半的路程.
这应该是介绍某个行星距地球的距离所举的例子吧.希望能够帮到你.

无线电波也以光的速度传播,并假设这样一个自动信使捡起我们第一次播出的1920的,消息到地球仅仅是半路上。

无线电波也是以光速传播的, 假设这个自动接收器收到了我们在20世纪20年代的广播, 现在这条信息距离目的地还有一半的路程(目的地是指自动接收器的母星, 外星人的老窝)
这个是新概念吧, 幸亏我找到原文, 要不还不好懂,

无线电波也是以光的速度,并假设这种自动化信息装置接收了我们在1920年的一次广播,回到原来的行星的消息是几乎没有中途有