The root of a quantity as indicated by the radical sign .
放在表达式前表示被开方根的符号。
Because the work needs to realize single-chip on the operation of open radical sign .
因为工作的需要，要在单片机上实现开根号的操作。
Results All patients showed axillary node enlargement as the first sign. 4 cases of OBC were operated with modified radical mastectomy.
结果4例均以腋下肿块为首发症状且均予手术治疗，手术方式为乳腺癌改良根治术，术后辅以放、化疗。
Results All patients showed axillary node enlargement as the first sign. 4 cases of OBC were operated with modified radical mastectomy.
结果4例均以腋下肿块为首发症状且均予手术治疗，手术方式为乳腺癌改良根治术，术后辅以放、化疗。
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