充气式航天器并不是什么新颖的想法，NASA的第一颗通讯卫星回声1号实际上就是一个宽30米的聚酯薄膜大气球，它是用来发射来自地面的无线电广播的。
The idea of inflatable spacecraft is not new. The Echo I - NASA's first communication satellite - was essentially 100-foot-wide Mylar balloon that reflected radio transmissions from the ground.
主要是能承认这种形式的通讯是可能的，正如我们所熟悉的窄带无线电广播是可行的。
The main thing is to acknowledge that such a form of communication is possible, and just as practicable as our familiar narrow-band radio transmissions.
主要是能承认这种形式的通讯是可能的，正如我们所熟悉的窄带无线电广播是可行的。
The main thing is to acknowledge that such a form of communication is possible, and just as practicable as our familiar narrow-band radio transmissions.
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