太阳大气则由光球层、色球层、过渡区和日冕组成。
The solar atmosphere above that consists of the photosphere, chromosphere, a transition region and the corona.
针对某些刀刃曲线的特殊性质和球头刀具的刃形分布要求，提出了过渡刃的概念及其设计方法。
In accordance with special qualities of some cutting edges and edge distribution, the concept of transition edge and its designing method are presented.
结果表明，泰和鸡的肾小球旁器由球旁细胞、过渡型致密斑、球外间膜细胞和极周细胞所组成。
The results show: The JGA of Taihe fowl consisted of juxtaglomerular cells, transitional macula densa, extraglomerular mesangial cells and peripolar cells.
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