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在肿瘤放疗中,常用档铅技术来保护正常组织和重要器官;用楔形板调整射野内剂量分布。国产模拟定位机(如天津FM—Ⅱ型
In tumor radiotherapy, the use of lead technology is used to protect normal tissues and vital organs; the wedge-shaped plate is used to adjust the dose distribution in the field. Domestic analog positioning machine (such as Tianjin FM-II type