Conclusion: Reversible oviduct block contraception is a new method, its blocks being unlikely to drop out; safe and reliable, with good reversibility and high renewal rate of pregnancy.

结论：输卵管置管可复性节育术方法新颖，不易脱落，安全可靠，可复性好，复孕率高。

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The comprehensive quality for CFRD is: few cracks of concrete face slab, small seepage rate through the dam and a safe and reliable performance.

混凝土面板堆石坝的综合质量要求是，混凝土面板裂缝少，大坝渗漏量少，大坝安全、可靠。

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ConclusionCutting balloon was safe and reliable when used to managepoststenting restenosis in lower limb arteries and caused a relatively low rate of restenosis.

结论 切割球囊处理下肢动脉支架术后再狭窄安全、可靠、再狭窄率较低，有较高的临床应用价值。

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