The solar wind is a high-speed but extremely tenuous stream of electrically charged gases—ionized hydrogen and helium—that flow outward from the sun.
太阳风是一种高速但非常稀薄的从太阳向外流动的带电气体离子氢、氦流。
The bubble is inflated by solar wind, the high-speed stream of charged particles blowing out from the sun to the solar system's very edge.
太阳表面高速逸出的带电粒子形成了太阳风，它直达太阳系的边缘，使泡泡膨胀。
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