英语语法分析

ObjectivesTo improve the applicable technique of ureteroscopic treatment with Pneumatic Lithotriptor (pl) for ureteral calculi.

目的提高输尿管硬镜配合气压弹道碎石(PL)治疗输尿管结石的应用技术。

Objective to study the clinical effects and operating experience of ureteroscope pneumatic lithotriptor for the treatment of ureteral stones.

目的探讨输尿管镜、气压弹道碎石的临床效果和操作体会。

Objective To explore the new treatment method for knee joint degeneration and develop the clinical application of extracorporeal shock wave lithotriptor.

目的探讨膝关节退行性变治疗的新方法，扩展体外冲击波碎石机的临床应用范围。