Based on the method of linear polarization, AC impedance and time potential, it is studied that the properties of seawater corrosion resistance of rebar in normal concrete and fly ash concrete.
应用线性极化法、交流阻抗法和时间电位法等电化学方法对普通混凝土和掺粉煤灰混凝土中钢筋耐海水侵蚀性能进行了研究。
Compare to the normal rectangular waveguide, ridge waveguide has the character of broader bandwidth, smaller dimension, lower equivalent characteristic impedance, etc.
与普通矩形波导相比，脊波导具有工作频带宽、尺寸小、等效特性阻抗低等特点。
Objective To determine the normal value of cardiac output measured by reconstructed impedance cardiogram.
目的探讨重建心阻抗图测定心排血量的正常值。
The TESLA positron injector linac with a L-band TW normal conducting structure has been studied, which offers both higher shunt impedance and larger aperture.
TESLA行波正电子注入器采用L波段常温加速结构，它同时具有高分路阻抗和大孔径的优点。
Objective to explore the normal value of left ventricular end-diastolic pressure (LVEDP) and left ventricular diastolic index (LDI) measured by reconstructed impedance cardiogram (RICG).
目的探讨重建心阻抗图测定左室舒张末期压(LVEDP)和左室舒张指数(LDI)的正常值。
Sometimes a lot - for instance, you might see an impedance result of anywhere from one to as much as 50 ohms from a particular speaker design within it's normal operating frequency range.
有时这种变化的幅度会非常大，例如，你可能会观察到一个扬声器在普通的工作频率范围内其阻抗可能是从1欧姆到50欧姆之间的任何一个数值。
Surface impedance of metals in infrared region is calculated for an arbitrary Fermi surface. Expressions applicable to all cases of skin-effect (normal, anomalous and intermediate) are obtained.
本文中对任意费米面求出了金属在红外波段的表面电阻，所得表达式适用于各种性质的趋肤效应(正常、反常和中间情况)。
The cardiac functions were measured by the impedance cardiography and the transthoracic admittance plethysmography in 200 hypertensive patients and normal subjects.
采用心阻抗图与心导纳图对高血压病患者与正常人各200例进行了心功测定。
A special nomograph designed for calculating the normal specific acoustic impedance is proposed.
本文提出一种为计算法向声阻抗率而设计的专用列线图。
A special nomograph designed for calculating the normal specific acoustic impedance is proposed.
本文提出一种为计算法向声阻抗率而设计的专用列线图。
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