upper pole piece

• 上极部

upper pole piece的用法和样例：

例句

1. That is, the parents are cousins.Through the fundus examination, we found diffuse yellowish crystal deposits and chorioretinopathy in the posterior pole.
   两病例为姐妹，眼底检查可见散在性黄白色晶体沈着物，后极部可见脉胳膜网膜变性。