uret[医] 氮氧甲基ure抱朴说Ureter malformation输尿管畸形ureterovesicoplasty输尿管膀胱成形术ureteoneopyelostomy输尿管肾盂吻合术ureteroureterostomy[医] 输尿管输尿管吻合术Ureteric dilatation输尿管扩张Ureterolith calculi输尿管结石ureterourethrostomy输尿管尿道吻合术urethane insulation聚氨酯绝缘材料Ureteral obstuction输尿管梗阻Urechis unicoinctus单环刺螠