利用计算机模式识别原理，快速、准确地识别出抽油杆表面多种缺陷的阻抗图。
Based on the principle of model recognition, we can quickly and accurately identify the impedance charts of various defects on the surface of pump-rod.
前两种方法因受一些情况例如参数、故障点接地阻抗、运行模式等影响而具有较低的精确度，而行波法具有较高的精确性。
The fir st two methods have low precisions for influence oft these cases : line parameters , fault point grounding impedance , operating mode of power system.
前言：强化电弧炉的“高阻抗”模式，是至今被倡导实现“超高功率化”唯一经济合理的主电路供电结构。
The high-reactive mode of intensify EAF , is chief circuit frame of only economically advisable, which is preached to carry out, so far.
介绍了一种直流耦合跨阻抗光突发模式接收机。
In this paper, a novel DC coupled feedforward type optical burst mode receiver is presented.
本文对波导环行器的工作模式和阻抗匹配进行了理论探讨。
This paper gives a theoretical description of the working modes and impedance matching conditions of a 3-port broadband waveguide circulator.
在第四章，首先分析基片集成波导和矩形波导的阻抗特性及电磁场模式特点。
In Chapter 4, the impedance characteristics and electromagnetic field modes of SIW and rectangular waveguide are analyzed firstly.
前言：目的：探讨脉冲电流激励模式下测量生物电阻抗的原理及其实现。
AIM: To study the mechanism and implementation of current pulse exciting impedance measurement of bio tissues.
目的：设计一个采用直接数字合成技术的电流模式多频阻抗激励源。
With the appearance of DDS ASIC, Direct Digital Synthesis(DDS) technology is wide ranging applied.
目的：设计一个采用直接数字合成技术的电流模式多频阻抗激励源。
With the appearance of DDS ASIC, Direct Digital Synthesis(DDS) technology is wide ranging applied.
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