As a completion accessory, a circulation valve is included to circulate fluid for well kill or kickoff.

作业完井的一个辅助工具，循环阀用于在压井或启动时循环流体。

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International Circulation: it seems with the percutaneous valve replacement its... is that something that is being discussed here at ACC?

国际循环：经皮瓣膜置换，这也是此次ACC讨论的话题么？

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Objective To investigate the effects of preconditioning and postconditioning with Shenfu Injection (SFI) on cognitive function in patients after valve replacement under extra-corporeal circulation.

目的观察参附注射液(SFI)预处理及后处理对体外循环心脏瓣膜置换术后患者认知功能的影响。

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