Heat Exchange Tube and Tube Sheet
welding between heat exchanging tube and tube sheet
Adenocarcinoma of the anal glands
Adenocareinoma of anal canal
anal
肛门
肛管
肛
肛瘘
分析
臀脉
肛裂
臀室
肛门的
航道
尾端的
肛膜
肛门腺
肛内陷
肛门囊
肛门反射
臀部的
锁肛
anal atresia with perineal fistula
anal atresia with urethral fistula