The temperature at Earth's exobase oscillates but is typically about 1,000 kelvins, implying that hydrogen atoms have an average speed of five kilometers per second.
地球外气层底
温度是不断变动，不过通常约是1000K，使得氢原子平
度为
秒5公
。
The temperature at Earth's exobase oscillates but is typically about 1,000 kelvins, implying that hydrogen atoms have an average speed of five kilometers per second.
地球外气层底温度是不断变动，不过通常约是1000K，使得氢原子平度为秒5公。
：以上例句、词性分类
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