目的探讨老年椎 基底动脉供血不足性眩晕患者眼震电图的改变及其临床意义。

Objective To explore the electronystagmography (ENG) changes and their clinical significance in aged patients with vertebro-basilar insufficiency (VBI).

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她曾经在这个国家最大的城市，阿拉木图的一所医院验过一次血，用的居然是剃须刀片。

She once had some blood taken in a hospital in Almaty, the country's biggest city, with a razor blade.

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本文通过研究主动脉容积变化微分方程，导出了心阻抗图与心脏射血的非线性函数关系。

This paper derived a non-Linear function relationship between the cardiac impedance plethysmogram and the heart ejection by researching differential equation of the aortic volume change.

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