When solar activity is high, solar extreme ultraviolet rays warm and expand the thermosphere.
當(dāng)太陽(yáng)活動(dòng)劇烈時(shí), 太陽(yáng)極端的紫外線會(huì)加熱并使熱大氣層擴(kuò)張.
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The temperature rises rapidly to between 500 k and 2000 k in the region known as the thermosphere.
在稱之為“熱層”地區(qū)域內(nèi),溫度很快上升到500K與2000K之間.
辭典例句
After the thermosphere is the thermopause, which is the outer most boundary of the thermosphere.
熱成層之后是熱成層頂, 它是熱成層的最外邊界.
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