(1) Geometry model of roller bit’s sphere tooth, wedgy tooth and bucket shape tooth were established;
（1）建立了牙轮钻头的球形齿、楔形齿和勺形齿三维空间的几何模型；
(1) Geometry model of roller bit’s sphere tooth, wedgy tooth and bucket shape tooth were established;
（1）建立了牙轮钻头的球形齿、楔形齿和勺形齿三维空间的几何模型；
Partial gastrectomy was performed in four cases, distal gastric curative resection in one case, and local wedgy resection in one case.
全部病例
手术治
，切除
病理检查及免疫组化证实；
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由互联网资源自动生成，部分未
过人工审核，其表达内容亦不代表
软件的观点；若发现问题，欢迎向我们指正。
