The tail consists of 4 segments: neck region, midpiece, principle piece and endpiece.
尾部又分4段：颈段、中段、主段和末段。
The midpiece consists of 5 or 6 mitochondria, a pair of centriole and several vesicles.
中段包括5或6个线粒体，一对中心粒及一些泡状结构。
Objective To approach the clinical method of complex therapy for midpiece esophagus cancer.
目的探讨综合治疗中段食管癌的临床方法。
Objective To approach the clinical method of complex therapy for midpiece esophagus cancer.
目的探讨综合治疗中段食管癌的临床方法。
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