查询词典 force

A unit of magnetomotive force equal to the magnetomotive force produced by the passage of 1 ampere through 1 complete turn of a coil; equal to 1.257 gilberts.

磁通势单位等于安培的电流通过单位线圈时产生的磁通势；等于吉伯。

So, it is very difficult to monitor and protect the rotating rectifier. This paper theoretically analyses the armature current and magnetomotive force in AC exciter of brushless synchronous machine with rotating rectifier. Under the normal or fault conditions of rotating rectifier, the mathematical expressions of the armature current, the m.m.f and induced electromotive force are approached.

本文通过对旋转整流器在正常与故障状态下的交流励磁机电枢电流和电枢电势作了初步的理论分析，推导出旋转整流器在正常与故障状态下电枢电流、空间谐波合成磁势及其感应电势的数学表达式。

First,it mainly utilizes analytics to deduce formula of slot leakage reactance.It considers three instances,including monolayer-slot,multilayer isometric-slot and multilayer anisometric-slot.Then,the analytics and the FEM are utilized to calculate slot leakage reactance of stator winding of prototype of Powerformer and compare their results.Second,the theory of utilitzing FEM to calculate the reactance of Powerformer is simply introduced,including stable reactance,transient and subtransient reactance.Specially,the saturated influence of the stable reactance is considered.Then, the results are analysed.Final,it mainly introduces the influence of harmonic magnetomotive force of stator winding and analyses the harmonic magnetomotive force of stator winding.

首先是用解析法推导出Powerformer定子绕组槽漏抗的计算公式，考虑了单层圆形半闭口槽、多层等半径圆形半闭口槽和多层不等半径圆形半闭口槽三种情况，并对Powerformer样机的定子绕组槽漏抗用解析法和有限元法进行了计算，并比较其结果；其次，简要介绍了有限元法计算Powerformer电抗参数的原理，包括稳态电抗、瞬态电抗和超瞬态电抗，对稳态电抗考虑饱和影响，对结果进行分析；最后，介绍定子绕组谐波磁势对电机运行性能的影响并对定子绕组谐波磁势进行了分析。

A dynamic model for rotor-stator rubbing system of multilobe bearings which have a combined action of oil-film force, rubbing force and geometrical eccentricity between stator and bearing is put forward in this paper.

本文针对多油叶轴承支承的转定子碰摩系统，建立了当轴承与定子几何不对中时，油膜和碰摩联合作用下的转子系统动力学模型，探寻了该模型的数学求解方法。

Some of those who went to Jerusalem were non-Israelites. Among these were "Solomon's servants", who were likely descendants of his prisoners of war and Canaanites whom he had organized as a labour force in the construction of the Temple; also, there were the Nethinim (meaning "given ones") who were Temple servants from the descendants of the Gibeonites whom King Solomon organized as a work force to help the Levites cf.

有些非以色列人也回到耶路撒冷，包括「所罗门仆人的后裔」，可能是一些战俘和迦南人的后裔，所罗门王曾指派他们服劳役，兴建圣殿；也包括「尼提宁人」，他们则是基遍人的后裔，所罗门指派其在圣殿里服事利未人（参书9：1；王上9：21；代上9：2）。

In this paper, a nounal test with table L9(34) has been ed for a new type of flap rudder s, and put forward some regression formulae of hydrodynamic performance,such as rudder normal force derivahve fa, the critical angle of attack ah and rudder nounal force coefficient CN, these formulae had been validated by the flap rudder in 9000t cement - carrier ship.

本文通过对新型襟翼舵舵模的L9（34）正交试验研究，给出一套包括襟翼舵法向力导数fα、临界攻角α和法向力系数CN的回归公式，并经9000吨自卸式水泥船新型襟翼舵舵力试验验证，表明计算公式对同类型的襟翼舵是完全适用的。

With the formula of universal gravitation and centripetal force, we can find out the centripetal force to keep two stars moving in a circle orbit is equal to 3.4 octillion times of the universal gravitation between the two stars.

利用万有引力和向心力的公式，我们可以计算出，绕转所需的向心力为万有引力的3400亿亿亿倍。

Afterwards, the X-35C began a series of envelope-expansion flights and on 25 January 2001, the X-35C completed tanker qualification trials with a series of air-to-air refuelings behind an U.S. Air Force KC-10. The X-35C then completed its first supersonic flight on 31 January 2001 before being ferried from Edwards Air Force Base, California to Patuxent River Naval Air Station, Maryland.! t5 F* M* w. F.}% s

然后， X-35 C 开始了一系列的envelope-expansion飞行试验，并在2001年1月25日，在美国空军的KC-10 tanker耗尽的情况用air-to-air补给燃料试验飞行成功。2001年1月31日X-35 C在从爱德华空军基地被舰载到Patuxent 河海军加州马里兰空军基地后，完成了它的第一次超音速飞行。

Absctrct: Objective This study was designed to investigate the stress distribution in the surface of tooth and peridental tissues and the initial displacements of tooth in the maxillary under two orthodental simulating force rectangular archwire with T loop and II class elastic used clinically by the 3-D finite element method so as to clarify the biomechanism of orthodontic tooth movement and component of optimal orthodontic force system.

目的：通过有限元分析法比较两种工况下上颌各牙齿的位移趋势和牙根及牙周支持组织内的应力分布规律，为临床治疗中合理选用矫治力系统以便有效的控制牙齿移动类型提供可靠的理论依据。

The perioral force correlated with malocclusion. The position of the teeth decides the value of the perioral force.

口周力的大小与错〓类型是相关的，牙齿的位置决定了口周力值的大小。

I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像，后来回台湾，甚至去年在北京，居然也四处看见她的海报，才惊讶她的魅力之大。