查询词典 permanent field

Back in the Gold age of sound reproduction, an electromagnet was the only means of providing a magnetic field to the voice coil of an electrodynamic loudspeaker driver for sound reproduction, until the permanent magnet made it's appearance, it was a great idea back then to replace those bulky and expensive power supplies to feed the electromagnet coils, but something very subtle happened to the sound quality!

早在黄金年龄的声音复制，电磁铁是唯一的手段，提供了一个磁场对音圈的电动扬声器声音驱动程序的复制，直到永久磁体它的外观，它是一个伟大的想法，以取代当时那些笨重而昂贵的电源供应系统，饲料的电磁铁线圈，而是发生在非常微妙的音质！

Key word false news; Manifestation; Numerous psychology; Cultural level; Anticipates the field of vision; Region space; Permanent control method

关键词虚假新闻；表现形式；受众心理；文化层次；期待视野；地域空间；根治方法

The position of permanent magnet, optimum length of axial field coil and choosing principle of iron core length are discussed.

然后提出了混合磁路多边耦合电机的方案，即在永磁感应子式步进电动机上增设一套轴向励磁线圈以对永磁体磁场进行补偿。

Then the nonuniformity of the magnetic field around permanent magnet effecting the sta-bility of the sensor is analyzed.

分析了由于永磁铁周围磁场的不均匀对磁性液体传感器稳定性的影响。

ABSTRACT The anisotropy bonded NdFeB is a hotspot in the field of rare earth permanent magnet at present.

各向异性粘结NdFeB是目前稀土永磁研究的一个热点。

Finite element method is used to calculate the electromagnetic field of permanent magnet actuator.

本文采用有限元方法计算永磁机构的磁场，分析静态特性，获得磁场分布、分合闸启动电流等参数。

The electromagnetic field of permanent magnet retarder was calculated by using code ANSYS.

利用ANSYS软件对永磁式缓速器的电磁场进行计算。

In this paper, we at fist analyse the distribution of magnetic field in the permanent magnet synchronous motor which rate power is 800W and calculate parameters of this motor On t...

并在传统的计算电枢反应电抗的基础上提出了一种基于电势平衡方程式的计算方法，本论文称之为"电势法"。

A method for measuring 3-D magnetic field of the permanent magnet with three single-dimension Hall probes was proposed.

提出了一种采用3个一维霍尔探头进行三维测量小型永磁体空间磁场的方法。

The only thing that can pass through the encapsulation is the magnetic field of the permanent magnet on the encoder.

唯一能穿透气密封装的东西就是编码器永磁体的磁场。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。