钬的例句（钬在句子中的用法）

• Objective: Observation after urethra holmium laser lithotrity treatment ureter upside stone clinical curative effect and security. 目的: 观察经尿道钬激光碎石术治疗输尿管上段结石的临床疗效及安全性.
• Objectives To study the cause of complication of holmium laser ureterolithotripsy. 目的探讨输尿管镜钬激光腔内碎石并发症发生原因.
• Objective : To study the cause of complications associated with holmium laser ureterolithotripsy. 目的: 探讨输尿管镜钬激光腔内碎石并发症的发生原因与预防措施.
• Objective To investigate the therapeutic effect of holmium - laser on ureteroceles. 目的探讨钬激光治疗输尿管口囊肿的疗效.