例句與造句

1. The diffuse x - ray cloud is due to gas that has accumulated in the central region and been heated to millions of degrees , probably by shock waves from supernova explosions
   彌漫的x射線云的成因是中心區(qū)域所積累并被加熱到數(shù)百萬度的氣體，加熱的可能原因是超新星爆發(fā)產(chǎn)生的激波。
2. It's difficult to find diffuse x-ray in a sentence. 用diffuse x-ray造句挺難的