查询词典 blowout magnet

The device of claim 1 wherein said magnet is made of neodymium iron boron.

说的磁铁由钕铁硼做成的索赔1的设备。

Magnet is attracted to both coils, and as a result feels no net force although it

一扭矩，但在这磁铁方向是被固定向上的）。当至第二半圈整个条件相反时

She had never met the man, but she knew his reputation as a talent magnet who had built MTV and Nickelodeon into two of the most widely distributed cable networks on earth.

她从未谋面的男人，但她知道他的名声作为人才磁铁谁建造了MTV和尼克分为两个最广泛的有线网络在地球上。

Located in the North Cyprus capital city of Nicosia, NEU is also a foreign student magnet.

位于北塞浦路斯首都尼科西亚神经也是外国留学生磁铁。

To high-precision ring permanent magnet torque motor servo system used in direct drive numerical control rotary table with the request of smooth operation at low speed, the precision is mainly restricted by cogging torque.

中文摘要：对于要求在低速下能够平稳运行的高精度直接驱动数控转台用环形永磁力矩电机伺服系统，它的定位精度主要受到以齿槽转矩为主的扰动力矩的影响。

For the characteristic of ring permanent magnet torque motor used in direct drive numerical control round table suffering from the effect of load disturbances and parameter variations, the H∞ controller design methodology without the orthogonality assumptions is combined with m-K iteration in m synthesis to design a m-H∞ speed controller in this paper.

针对直接驱动数控转台用环形永磁力矩电机易受负载扰动及参数变化影响的特点，将去除正交性假设的H∞控制器设计方法与m综合中的m-K迭代法相结合，设计了一个m-H∞速度控制器。

For the characteristic of the ring permanent magnet torque motor used in direct drive numerical control round table suffering from the effect of load disturbances and parameters variations, a multi-objective mixed H2/H∞ static output feedback controller, which makes all poles of the closed-loop system be located within a prescribed linear matrix inequality region D to achieve pole placement, is designed based on LMI.

针对直接驱动数控转台用环形永磁力矩电机易受负载扰动及自身参数变化影响的特点，文中基于线性矩阵不等式(linear matrix inequality， LMI)，设计了一个多目标混合H2/H￥静态输出反馈控制器，该控制器可使闭环系统的极点均落在预先选定的线性矩阵不等式区域D内来实现极点配置。

Just a magnet attracts iron,when we met for the first time,we adored each ocher.

是一股神奇的力量将我牵向你。当我们初次相间，便已认定彼此

ABSTRACT The researches of this thesis are carried out around the development of high performance machine tool spindle permanent magnet synchronous motor and its drive system. Five parts are included: First of all, concerning the operating characteristics of the machine tool spindle drive system, the optimum current control strategies of spindle PMSM are determined; The design rules of spindle PMSM's key parameters are summarized, based on the study on the influences of the design parameters on the performances of the PMSM operating at different current control strategies; The practical methods to improve the flux-weakening ability of the PMSM are presented; Based on the analysis and comparison of the operating performances of PMSM with different rotor structures, a novel PMSM rotor structure, which is of excellent mechanical performance, suitable for fluxweakening operation and can improve the torque output capacity in the same time, is presented.

本文围绕高性能机床主轴永磁同步电动机及其传动系统的设计研究展开，所做工作主要包括五部分：首先，确定了主轴永磁同步电动机定子电流的最优控制策略；通过对不同控制策略下主要设计参数对主轴永磁同步电动机性能影响的计算研究，总结了参数设计规律；提出了永磁同步电动机弱磁扩速的实用措施；在分析比较不同转子磁路结构电机的性能，尤其是弱磁扩速能力的基础上，提出了一种机械性能优越，易于弱磁扩速，同时能保证电机恒转矩运行时的转矩输出能力的新型转子磁路结构。

He taught at Oxon Hill High School in Maryland, a Science and Technology Magnet School. While at Oxon Hill, Mr. Barbarich and his mentor, Ms. Olivia Weaver, developed the science and technology program into one of the leading programs on the east coast.

在奥克森山Barbarich和他的导师，奥利维亚女士韦弗，制定了成为东海岸的主要项目之一的科学和技术计划。

In other research, chondroitin is being investigated for use in several other conditions.

在其它研究，软骨素被调查用於几个其它情况。

They would make fun of him for having to work.

他们拿他的工作来开玩笑。