Objective to assess the clinical effect of intra-aortic balloon pump in patients with cardiogenic shock due to acute myocardial infarction.

目的探讨主动脉内球囊反搏在介入治疗急性心肌梗死合并心源性休克患者中的作用。

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To the problem of cavitation and shock that appears in the outside circulation piston pump running, the relation-ship between rotor profile and dead volume, flow rate and cavitation were analyzed.

针对外环流活塞泵运转时出现的汽蚀、震动问题，从理论上分析了转子型线与闭死容积、流速变化和发生汽蚀的内在关系；

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Priority shock filling acid fog clean tower without pump have high cleaning efficiency, less maintenance and steady characters, and is easily to manage.

优选无泵形冲击式填料酸雾净化塔，净化效率高，维修量少，易于管理，性能稳定。

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The sticker-shock at the pump is a rude reminder that even though energy independence for the United States is closer at hand than at any other time in the last fifty years, energy is still very much a global commodity.

FORBES: Pain at the Pump