This paper gives a method for analysing and computing the resonant frequency for some commonly used pipe systems by means of the fluid impedance method.

本文利用流体阻抗法对几种常见管系提供了求其固有频率的分析和计算方法。

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Objective To evaluate the fluid balance and dry weight with whole body bioelectrical impedance analysis (BIA) in patients with maintenance hemodialysis (MHD).

目的采用全身生物电阻抗分析(BIA)法评估维持性血液透析(MHD)患者水平衡动态变化及干体质量。

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