n.永久磁铁

permanent magnets───永磁体

permanent magnetism───永磁；[物]永久磁性

permanent base───恒基托(牙)

permanent damage───永久损伤

permanent set───永久变形；最后凝结；固定装置

permanent wave───烫发；稳定波

permanent waves───烫发；稳定波

permanent hardness───[力][化学]永久硬度

permanent basis───平时编制

That distinguishes them from synchronous motors that use a permanent magnet in their rotors instead of a set of aluminium or copper conductors.───这就把它们和在转子处使用永磁铁而非一套铝或铜导体的同步发动机区分开来。

A bar on horseshoe magnet is called a permanent magnet.───棒形或马蹄形磁体称为永磁体.

Permanent Magnet Lifter is a kind of lifting gear.───永磁起重器是起重工具的一种.

Emphatically reviewed four systems of permanent magnet material : Al - Ni - Co magnet, ferrite magnet, rare - magnet and glue magnet.───着重评介了铝镍钴系永磁材料 、 铁氧体永磁材料 、 稀土永磁材料和粘结永磁材料四大系列.

When the warmed alloy is placed near a permanent magnet, like a rare-earth magnet, the alloy's magnetic force increases suddenly and dramatically.───当加热的合金放置在永久磁铁——如稀土磁铁附近时，合金的磁力会突然戏剧性地大幅增加。

This paper states the mechanism of mechanically alloying & its application in rare earth permanent magnet materials.───简述了 机械合金化 的机理及其在稀土永磁材料中的应用.

The sensorless control methods of permanent magnet synchronous motor are mostly on - frequency signal injection or state - observer.───永磁同步电机无位置传感器控制多基于高频信号注入法或状态观测器法.

Doubly salient permanent magnet motor is a novel electromechanical controllable AC variable speed systems.───双凸极永磁电机是一种新的机电一体化可控交流调速系统.

The conclusion can be used to direct the design of electromagnetic relay with permanent magnet.───研究结论对含永磁的电磁继电器设计具有一定的指导作用.

This thesis proposes a sensorless drive system a permanent magnet synchronous motor.───本文旨在探讨无转轴侦测元件永磁同步电动机驱动系统.

Professionals engaged in industrial control automation, DC exchange converter technology, permanent magnet technology developed high - tech enterprises.───专业从事工业控制自动化 、 直流交流、变流技术 、 永磁技术研发的高科技企业.

Line - start permanent magnet synchronous machine has high efficiency and power factor.───异步起动永磁同步电动机具有较高的功率因数和效率,同时具有异步起动能力.

The dissertation proposes control technology of rare earth permanent magnet brushless motor ( BLDCM ) in railway switch.───论文主要研究铁路转辙机用稀土永 磁无刷 直流电动机的驱动控制技术.

This dissertation presents the application of ac - dc - ac power controllers to power systems with - phase - winding permanent - magnet synchronous generators.───本文旨在研制应用于三相双绕组永 磁式 同步风力发电机系统之交流 - 直流 - 交流功率控制器.

test program will operate the permanent magnet propulsion motor up to full power (full torque and full load) in a test facility that simulates an actual U.S.Navy DDG-1000 engine room.───测试程序将在一个美海军仿真实际DDG - 1000引擎室的测试设施中操作永磁推进马达至全功率(全扭矩和全负载)。

The main factor is thrust ripple of permanent magnet liner synchronous motor.───而永磁直线同步电机的推力波动是影响其性能的主要因素.

The structure and working principle of the permanent magnet mechanism are proposed.───论述了永磁机构的结构及工作原理.

The hybrid magnet was made by combining electromagnet with permanent magnet ( PM ).───通过比较永久磁铁的不同安装位置的影响,给出混合磁铁的结构方案.