内阻抗

The ampltfier was to have low distortion, reasonably linear response over the audio range, a maximum input of 2.5 volts, and output taps of 4, 8, and 16 ohms.

不仅如此，该放大器还可以在音频范围内获得低失真以及合理的线性频响。改放大器最大输入2.5V，输出阻抗 4/8/16欧。

Simulations based on finite integration method are carried out in a wide frequency range for a balanced feeding finite wide-angle biconical antenna and many results including input impedance and far fields are obtained.

利用基于有限积分法的电磁场仿真技术对平衡馈电的有限长宽角双锥天线作了计算，得到了天线在很宽频带内输入阻抗、远区辐射场与频率的关系曲线。

The antenna has a composite structure of a cage and an asymmetric biconical structure. The impedance bandwidth and radiation pattern bandwidth are enhanced, and the tilting and ripping of radiation patterns are eliminated.

将笼型与不对称双锥结构相结合，展宽了天线的阻抗和方向图带宽，抑制了天线辐射方向图在宽频带内上翘或裂瓣。

The modeling method of valve components is based on the impedance measurements. Vector fitting is used to approximate the rational functions and Brune method is applied to provide equivalent circuits suitable for EMTP or PSCAD.

其中，阀组件内各元件的阻抗通过网络分析仪测量，然后通过矢量匹配进行零极点提取，最后通过布隆法进行网络综合得到阀组件各器件的宽频等效电路。

The effects of frequency on current distribution in each conductor and the stator impedance are discussed.

提出一种计算定子挤流效应的导体分层法，并研究了导体内电流的分布对定子阻抗的影响。

In order to understand the relationship between dielectric properties and sugar content of juices, dielectric properties of juice of three honeydew melon cultivars and four watermelon cultivars with different maturities were measured with an open-ended coaxial-line probe and impedance analyzer over the frequency range from 10 MHz to 1.8GHz. Soluble solids content of fruit juice and moisture of fruit pulp were also measured. The correlation between dielectric properties and soluble solids content was analyzed.

为了解果汁的介电特性与其主要内部品质——糖度之间的关系，该文利用末端开路的同轴探头和阻抗分析仪测量了10 MHz～1.8 GHz的频率范围内不同成熟度的3个品种密瓜汁和4个品种西瓜汁的介电特性，同时测量了反映果汁糖度的可溶性固形物含量和果肉的含水率，分析了介电特性和糖度间的关系。

The structure, component, morphology and magnetic property of the composites were characterized by X-ray diffractometry, Fourier transform infrared spectroscopy, transmission electron microscopy and vibrating sample magnetometry, respectively. The tangent value of magnetic loss angle and dielectric loss angle of the composites were measured by an impedance/material analyser with the frequecy in the range of 1 MHz～1 GHz.

利用X射线衍射仪、红外光谱仪、扫描电子显微镜和振动样品磁强计分别表征了样品的结构、形貌和磁性能，用阻抗/材料分析仪测定了复合物在1 MHz～1 GHz的频率范围内的磁损耗和介电损耗，并研究了聚苯胺和引发剂的相对含量对复合物的磁损耗和介电损耗的影响。

Codes for estimation of phase velocity and attenuation was written based on the expressions proposed by Gelinsky and others.

在非均匀介质中，阻抗的起伏会导致多孔弹性散射，介质各层压缩系数的变化会引起层内流动。

Three-dimensional nonlinear finite element modeling was used to analyze stress-strain response of 63Sn37Pb solder joint under power cycling loading conditions.

本文采用基于单一内变量亦即形变阻抗的统一型粘塑性Anand本构方程，描述了63Sn37Pb钎料的粘塑性变形行为，采用非线性有限元方法分析63Sn37Pb钎料焊点在功率循环下的应力应变过程。

Methods:1092 children from three primary school of FAW community include pre-school classes and Grade one and two classes received epidemiologic examination,if obstructive sleep apnea synd- rome was identified,pharyngeal check-up,fibrous endo- scopic,lateral x-ray,acoustic impedance or sleep oxygen saturation studies.

在长春一汽集团社区内的3所小学内的学龄前班、一年级、二年级内共1092名儿童进行流行病学调查，并对存在睡眠中呼吸暂停的儿童进行，咽部检查，纤维咽镜，鼻咽侧位片，声阻抗，夜间血氧监测检查。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。