simplexin单纯杆菌素simpleadj.简单的；朴素的；单纯的；笨的simple management简单管理simple mammectomy单纯乳房切除simple slope type简单斜坡simple roof truss简单屋架simple conversion简单位换simple locomotive单胀式机车simple vulvectomy外阴单纯切除术Simple renal cyst单纯性肾囊肿simple polynomial一阶多项式simple classifier普通分粒器