free stone

基本解释

Sorry. I'm sorry to touble you again for saying apologize to you. I make things uncertain coming clearly to free my stone.
抱歉，我很抱歉地再打扰你一下，因为我要向你表达我的歉意，我把不确定的事情弄得清晰起来以便放下我心里的石头。
kinfen.spaces.live.com
The stone free rates after shock wave lithotripsy for upper, middle and lower ureteral calculi were 74.1, 100 and 75.9% respectively.
对输尿管上部，中部和下部结石进行冲击波碎石术后结石排空率分别为74.1， 100 和75.9%。
The group found that there overall stone free rates after shock wave lithotripsy, ureteroscopy, and open surgery were 75.4, 93.3, and 100% respectively.
研究小组发现在经过冲击波碎石术，输尿管镜检查术和开放性手术后，所有的结石排空率分别为75.4， 93.3，和100%。

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any fine-grained stone, esp sandstone or limestone, that can be cut and worked in any direction without breaking
(as modifier)