3. Cover the target volume with effective dosage as much as possible. But at least 90% of the target volume must be covered by shots 用有效剂量尽可能多地覆盖目标脑瘤体积。但是照射必须覆盖至少90%的目标脑瘤体 积。 4. Use as few shots as possible 使用的照射次数尽可能少 Your tasks are to formulate the optimal treatment planning for a gamma knife unit as a sphere-packing problem, and propose an algorithm to find a solution 你的任务给作为球形包问题的咖玛刀单元制订最佳治疗方案,并提出能够找到解决方案的算法 Thile designing your algorithm, you must keep in mind that your algorithm must be reasonably efficient. 在设计你的算法的同时,你必须记住你的算法必须有效合理3. Cover the target volume with effective dosage as much as possible. But at least 90% of the target volume must be covered by shots. 用有效剂量尽可能多地覆盖目标脑瘤体积。但是照射必须覆盖至少 90%的目标脑瘤体 积。 4. Use as few shots as possible. 使用的照射次数尽可能少。 Your tasks are to formulate the optimal treatment planning for a gamma knife unit as a sphere-packing problem, and propose an algorithm to find a solution. 你的任务给作为球形包问题的咖玛刀单元制订最佳治疗方案，并提出能够找到解决方案的算法。 While designing your algorithm, you must keep in mind that your algorithm must be reasonably efficient. 在设计你的算法的同时，你必须记住你的算法必须有效合理