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1.Brachytherapy is a type of cancer treatment that uses radiation to kill cancer cells in the body.
近距离治疗是一种癌症治疗方法，使用辐射来杀死体内的癌细胞。
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2.In brachytherapy, radiation is delivered directly to the tumor site, which can be more effective than systemic chemotherapy.
在近距离治疗中，辐射直接输送到肿瘤部位，这比系统性化疗更有效。
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3. The success of brachytherapy depends on accurate positioning and dose delivery, which requires specialized equipmentand expertise.
近距离治疗的成功取决于精确的定位和剂量传递，这需要特殊的设备和专业知识。