查询词典 permanent aurora

Multiple wavelengths characteristics of dayside aurora activities were investigated with these keograms and in reference to all-sky images. It was found that there are three repeatedly appearing aurora activity regions along the dayside aurora oval. They are, Region A around 0900MLT in which aurora moves poleward while its intensity decreasing, and its form changingfrom arc to corona with time; Region B around 1330MLT in which aurora moves equatorward while its intensity increasing, and its form changing from corona to arc in time; Region C around 1330MLT in which aurora expands poleward while its intensity decreasing, and its forma evolving from arc to multiple arcs in time. There is a narrow belt of aurora activity in North-South direction between Regions A and B, which is dominated by weak and red corona aurora.

初步分析发现，沿日侧极光卵不论磁静日还是磁扰日，在三个波段上都同时观测到了四个重复出现的极光活动区，即0900MLT附近的A区、1330MLT的B区和1630MLT的C区以及1200MLT附近的G区。A区内的极光活动由低纬向高纬运动，强度逐渐变弱，形态由较宽的弧状极光向冕状极光演变；B区内的极光活动由高纬向低纬方向运动，形态呈现为冕状极光向较窄的极光弧的演变，极光强度逐渐增强；C区极光活动向高纬方向展宽，强度逐渐变弱，极光由单弧向多重弧演化；而在A与B之间存在一个纬度范围相对较窄的极光活动区G区，该区的极光呈现暗弱的冕状极光。

This text discussed how to choice the material of permanent magnet and transmit-magnet, design the circuitry of magnetism and the method of demagnetization and so on. There emphasize introduce the structure of permanent magnetism cupule of crane that using AlNiCo permanent magnet or NdFeB permanent magnet, application of RLC circuitry in using pulse to demagnetization and how to realize the lighter to weight, lower to cost and prolong using life for permanent magnetism cupule of crane by way of choosing in reason the parameter of R, L, C etc.

本文就节能、省材、安全的起重永磁吸盘设计制造中有关永磁材料与导磁材料选用、磁路设计组合、永磁体的充退磁方法等问题进行了讨论，着重介绍了用电脉冲充退磁的铝镍钴永磁、钕铁硼永磁或二者组合式的起重永磁吸盘的结构设计、RLC电路在脉冲充退磁技术中的应用，如何合理选用R、L、C等参数以实现起重永磁吸盘的小自重、低成本及长寿命。

Aurora: Aurora is also known as the Aurora, is the ancient Roman mythology, the goddess of weaving and the dawn of aircraft goddess, in charge of the Northern Lights, on behalf of the dawn before the rising sun.

欧若拉：欧若拉又称为奥罗拉，是古罗马神话里的织架女神和曙光女神，掌管北极光，代表旭日东升前的黎明。

On the analysis foundation for the at the same time generator control law of permanent magnetisms have discussed the at the same time generator word of permanent magnetism of niter quantity to melt the function of every control son modular in control system and the specific ay of realizing, have put forward a set of at the same time generator word of permanent magnetism of entire quantity to melt the specific enforcement of control scheme, and according to this set of scheme having established the synchronous generator of permanent magnetism based on Simulink the word of entire quantity melts to control emulation model, for the control made scheme emulate to analyses.

在对永磁同步电机控制规律的分析基础之上，讨论了永磁同步电机全数字化控制系统中各个控制子模块的功能和具体的实现方式，提出了一套永磁同步电机全数字化控制的具体实施方案，并根据这套方案建立了基于 Simulink的永磁同步电机全数字化控制仿真模型，对所出的控制方案进行了仿真分析。

The phenomenon is called aurora borealis or northern lights in the Northern Hemisphere and aurora australis or southern lights in the Southern Hemisphere.

这种现象在北半球称作为北极光，而在南半球则叫南极光。以前是路过的，现在是过路的。。。

The northern and southern polar lights – aurora borealis and aurora australis – are the only parts of the magnetosphere that are visible, but it is a critical part of Earth's space environment.

地球南北两极的极光不过是磁气圈仅有的两个可见部分，虽然磁气圈并不可见，但它却是地球宇宙环境的关键部分。

Energetic particles in the magnetosphere contribute to the aurora borealis and aurora australis .

高能粒子在磁层有助於北极光和极光芦苇。

The many photochemical reactions of mercury are a result of the metastable state of mercury atoms, and radiation from metastable oxygen atoms accounts for the characteristic green colour of the aurora borealis and aurora australis

汞的许多光化学反应就是汞原子的亚稳态造成的。北极光和南极光所特有的绿色可以用亚稳态氧原子的辐射来解释。

AURORA Matouqin Orchestra is different from other music team that they promote their own music discs (manufactured by Beijing Tianyishengshi international culture media AURORA Orchestra) by mise en scene, meanwhile, they also plan and participate in culture communications and

极光乐团不同于一般的艺术表演团体，其主旨是以舞台演出的形式大力推广由乐团演奏录制、北京天一盛世国际文化传媒极光音乐机构出品的音乐碟片，同时也策划、参与一些文化交流活动与商业性演出。

AURORA Matouqin Orchestra is different from other music team that they promote their own music discs (manufactured by Beijing Tianyishengshi international culture media AURORA Orchestra) by mise en scene, meanwhile, they also plan and participate in culture communications and business performs.

极光乐团不同于一般的艺术表演团体，其主旨是以舞台演出的形式大力推广由乐团演奏录制、北京天一盛世国际文化传媒极光音乐机构出品的音乐碟片，同时也策划、参与一些文化交流活动与商业性演出。

The receding calculations and experiment analyses in this subject are built on the blood cast of pig tongue.

本研究课题的前期工作是采用猪舌血管铸型模拟人舌而进行的数值计算与实验分析。

"Each human infection constitutes an opportunity for genetic modification of the virus through reassortment, mutation, or both...."

&每一次人类的感染都暗藏着一次基因修改的机会，无论是通过病毒的整合、突变或者兼而有之。。。。&