目的是比较体外震波碎石术（ESWL）与大力钳碎石术治疗膀胱结石的疗效。
The objective is to compare the efficienty of bladder stone by extracorporeal shockwave lithotripsy (ESWL) and energetically lithotrite.
钳子、弯线、大力钳和其它一些设备也有助于对型材起支撑和导送作用。
Clamps, bent wires, vise grips, and other devices can also help to support and guide the profile.
钳子、弯线、大力钳和其它一些设备也有助于对型材起支撑和导送作用。
Clamps, bent wires, vise grips, and other devices can also help to support and guide the profile.
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