查询词典 vertiginous current

The opened magnetic circuit is composed as tow NdFeB permanent magnets and a top plate without U-yoke. After take analyzed deeply for the opened magnet circuit with FEMM (Finite Element Method Magnetics) we find out the field distributing that is separated into three sections . One is the main area what we called as positive field section. Beside the main field there are tow areas that are called the inverted field sections. Loudspeaker arise a very serious distortion when the voice coil moving into inverted field areas. The direction of induced current in the coil part of entered inverted field area is same with the current driving into loudspeaker so that total currents increas largely and heat increase rapidly. With more coils moving into inverted area the voice coil will take on negative inductance properties. It is the main reason that voice coil is burned by heating with increasing current due to arise negative inductance. So opened magnetic circuit is not suitable for the woofers in which the voice coil have wider displacement range. When using this kind magnetic circuit design, the voice coil moving range should be less than the range of positive field to avoid loudspeaker arise serious distortion and heating. Even though voice coil moving range is in the positive area, loudspeaker will still arise more distortion because the field distribution is very cliffy at tow sides of the positive area and full range of magnetic field distribution is not parallel that will arise distortion. Base on above reasons, opened magnetic circuit is not an ideal magnetic circuit for low-frequency loudspeakers. But it can be used in mid-range or high-frequency productions.

开式磁路是由2片钕铁硼磁铁和主导磁板和导磁垫片组成，我们在实践过程中发现这种磁路结构不适合于低频扬声器的使用，我们通过使用FEMM（Finite Element Method Magnetics）软件包对该磁路进行了分析，该磁路的磁场范围被分成3个区域，其中在主导磁板附近形成一个正向磁场，在正向磁场的两边存在反向的磁场，音圈在工作时有很大一部分进入了反向磁场中，在反向磁场内线圈的感应电流方向与驱动电流方向相同，使得音圈呈现出负感抗特性，由于音圈的负感抗特性引起电流的增加导致音圈发热甚至烧毁，因此在扬声器中使用开式磁路时，音圈的运动范围应控制在正向磁场范围之内，否则音圈运动到反向磁场区域时将会产生很大的失真和发热，即使在设计时已经将音圈的运动范围控制在正向磁场范围之内，由于正向磁场的2个边缘磁场强度衰减太快，同时开式磁路中磁场的分布不是平行的，而是自由发散的分布，这样肯定会导致扬声器的非线性失真，因此我们得到的结论是：开式磁路并不是一个理想的磁路，它不适合于低频扬声器的使用，但它还可以应用于中高频扬声器。

Through analysing the error that exists in current family education, be examined afresh and protruding is taught now consuetudinary the distinctive function; in current family education is mixed through active mining use education consuetudinary, solve a few problems that exist in current family education.

通过分析当今家庭教育中存在的误区，重新审阅和凸现教育习俗在当今家庭教育中的独特功能；通过积极挖掘和利用教育习俗，解决当今家庭教育中存在的一些新问题。

Motor speed is controlled by varying the current in the field windings.for example,when the amount of current flowing through the field windings is increased, the field strength increases, causing the armature wingdings to produce a larger counter EMF which slows the motor.conversely,when the field current is decreased, the field strength decreases, and the motor speeds up because the conter EMF is reduced.

调速控制的不同目前在外地windings.for例如，当电流流动量的通过外地绕组是增加，电场强度的增加，导致电枢wingdings产生较大的反电势而减慢motor.conversely当外地电流降低，电场强度降低，电机的速度，因为conter电磁场降低。

Based on this work,the distribution of M2 tidal current ellipse,the cotidal current line and the horizontal structure of tide current field are studied.

在较准确地模拟了潮汐分布的基础上，研究了M2分潮流椭圆分布、最大流同时线分布以及潮流场结构。

The present invention provides a magnetoresistive memory cell (30), comprising a magnetoresistive memory element (31), a first current line (32) and a second current line (33), the first and the second current line (32, 33) crossing each other at a crosspoint region but not being in direct contact.

本发明提供一种磁阻存储器单元(30)，该磁阻存储器单元(30)包括：磁阻存储器元件(31)，第一电流线(32)和第二电流线(33)，该第一和第二电流线(32，33)在交叉点区彼此交叉但不直接接触。

The mesoscale cyclonical feature in the surface stream near the coastal areas is not apparent while the typhoon approaching the main land. The surface southeast current of typhoon is divided into an east current and a southeast current, making for confluence of local currents and convection.

当台风移近大陆时，靠近沿海地区的地面流场中尺度涡旋特征并不明显，主要表现在台风近地面偏东南气流出现分支，形成偏东与偏东南气流，有利于在沿海地区形成局部气流汇合并引起或增强对流。

We theoretically investigated the effects of incorporating Ih, T-type Ca2+ current, sustained inward current, and/or low-voltage-activated L-type Ca2+ channel current on 1 creation of BP cells, 2 robustness of BP activity to electrotonic loads of nonpacemaking cells, and 3 BP cell ability to drive NP cells.

我们从理论上研究了合并Ih， T-型 Ca2+流，持续内向电流，和/或低电压激活的L-型Ca2+通道电流对1产生 BP细胞， 2 BP 活性对非起搏细胞电紧张负荷的稳定性，和 3 BP 细胞驱动 NP细胞的能力的作用。

When placing the semiconductor carrying current in the magnetic field axial to the current direction, the semiconductor will generate transverse galvanomagnetic phenomenon, namely generate electromotive force in the direction axial to the magnetic field and current, which is Hall Effect.

把载有电流的半导体放在垂直于电流方向的磁场中时，半导体会产生横向磁场电现象，即：在垂直于磁场和电流的方向产生电动势，这就是霍尔效应。

In order to obtain the most economic benefits, the paper utilized the theory of "homalographic characteristic" and "share alike compensation current characteristic" to build up the best compensation relation for "hour-current" curve applied to transformer substation and for "length-current" curve applied to distribution line.

推导了应用于变电站的&时间—电流&曲线关系中存在的最佳补偿关系，以及应用于配电线路的&长度—电流&曲线关系中存在的最佳补偿关系，及补偿后的经济效益计算模型。

Record data include generator voltage UG1,UG2, auto setting value UGREF,manual setting value IFREF, trigger angle ARF, active power P, reactive power Q, rotor voltage Ufd, field current Ifd, generator frequency F0, local cabinet output current ILA, other cabinet output current ILB.

记录的数据包括发电机电压UG1，UG2，自动给定值UGREF，手动给定值IFREF，触发角 ARF，有功功率P，无功功率Q，转子电压Ufd，励磁电流 Ifd，发电机频率F0，本柜输出电流ILA，它柜输出电流ILB。

Although translator has turned from being a crystal ball by which the original culture can unrestrainedly penetrate to another crystal ball by which the target culture can freely traverse, the translator's personal embodiment, in the process of cognitive act, are still absent in translation studies. Translators are still subjects without body or simply disembodied subjects.

译者虽然由原语文化可以自由穿透的玻璃球变成了译语文化可以自由穿越的玻璃球，但译者认知过程中的个体体验在翻译研究中依然缺席，译者依然仅仅是一个没有躯体体验的主体。

Chillingly, he claimed our technology is 'not nearly as sophisticated' as theirs and "had they been hostile", he warned 'we would be been gone by now'.

令人毛骨悚然的，他声称我们的技术是'并不那么复杂，像他们一样，和"如果他们敌意"，他警告说，'我们将现在已经过去了。