查询词典 coils

The first scheme used combination of steel coils, gelfoam and iatrochemistry.

目的 探讨肝动静脉分流的DSA、CT表现与介入治疗的相关性。

One of these testing methods, eddy current, has been widely used for metal thickness measuring because of its good sensitivity, high test speed , non-contact and other advantage. The principle of eddy current testing is that, when the test coil is close to the metal conductor with alternating current, the eddy current would be inducing in the conductor, and correspongdingly, the eddy current would affect the original magnetic field, the result is the coils impedance and inducing voltage changed.

其中涡流无损检测技术具有灵敏度高、检测速度快、非接触等特点而广泛应用于金属厚度检测，它的原理是当载有交变电流的检测线圈靠近金属导体时在导体中产生涡流，该涡流又影响原磁场，使得线圈的阻抗和感应电压发生变化，通过分析阻抗或感应电压的变化来获得被测导体的信息。

A method for integrating infinite integrals that occur in solving the fields of source coil and equivalent coils is presented. Subtraction of asymptotic terms is proposed to speed up the truncation process of an infinite integration interval, which greatly improves the infinite integrals.

给出了一种简单有效的数值积分方法计算激励线圈和等效线圈解析解中遇到的无穷积分，提出了一种加速无穷积分收敛的有效方法，显著提高了磁场及涡流场的计算效率。

However, if the principle is assumed, it is surely incongruous to postulate a first cause as a way of escaping from the coils of an infinite series .

然而，如果承认这一原则，那么，假设某种第一推动力以避开无限系列造成的麻烦肯定是不合理的。

As to the space curve coils the arbitray right line and circles to obtain the rotational surface ∑, the body of rotational through ∑ s surround into(the part sealing off does not put the back plane disc), the integration formula about area of rotational surface and volume of the body of rotation are given by using coordinate transformation and Infinitesimal method.

利用坐标变换与微元法得到了空间曲线绕任一直线旋转所得旋转曲面∑的面积公式，以及由∑所围旋转体的体积公

A component consisting of two coupled coils in which the output voltage is less than the input voltage.

一种由两个耦合线圈组成的装置，其输出电压低于输入电压。

For 27 miles it coils through the city, amputating proud squares and busy thoroughfares, marching insolently across graveyards and gardens, dividing families and friends, transforming whole street-fronts into bricked-up blankness.

柏林墙绵延了27英里，切开了城郭，穿越了繁忙的交通枢纽，经过了墓地和花园，分割了家庭和朋友，把途经所有的街道变成了空白的砖墙。

If you are concerned about the water freezing in your system, you can add some 98% isopropyl alcohol and re-adjust the pulse frequency accordingly; or install some electric heating coils.

如果您关心的水冻结在您的系统，您可以增加约98 ％的异丙醇并重新调整相应的脉冲频率；或安装一些电加热线圈。

The ticker began to reel out jerkily its fitful coils of tape, the desk telephone had a chronic attack of buzzing.

股票行情自动收录器开始痉挛地吐出一卷卷的纸条，电话机犯了不断营营作响的毛病。

A 3 kilojoule electrical impulse has the potential to lift several hundred kilograms, so in theory a track with several coils that were pulsed in a equence could lift and carry along a load, such as a train: MagLev technology without superconductors!

例如这样的火车：不用超导体的磁悬浮。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。