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As far as the radio waves part of the spectrum, we can do these adequately from the ground because the atmosphere is basically transparent to our radio waves.
至于无线电波的频谱,我们可以在地面上充分利用,因为大气对无线电波基本上是透明的。
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16 种意境 · 9:16 竖屏 · 1440 × 2560 高清图片