hemisection of molar

例句：

1. 1. The surgeon performed a hemisection of the tumor.
   外科医生进行了肿瘤的半切手术。
2. 2. The anatomistconducted a segmentation of the human brain.
   解剖学家对人脑进行了分段研究。
3. 3.The pathologist examined the tissue with asectioning microscope.
   病理学家用切片显微镜检查了组织。