查询词典 external field

The graft ratio of the system using benzophenone as initiator in the presence of 1.2 Tesla of external magnetic field is more than three times than in the absence of magne tic field.

但是无论是用二苯甲酮、蕙醒还是安息香作为引发剂，异戊二烯的相对接枝率都相当低，一般不超过40多。

The conclusion can be obtained that the interior scattering sound field can be expressed as the superposition of the interior scattering sound field of the arbitrary-shaped closed thin shell and the external scattering sound fields of these scatterers.

研究结果表明，该内部散射声场可表示为封闭薄壳的内部散射声场和这些散射体的外部散射声场之和的形式。

We found that the permeability ratio and GMI ratio depend on external magnetic field, peaking at a transverse anisotropic field of H=0.4 kA/m.

并发现有效磁导率比随外磁场的变化，在各向异性场H≈0.4kA/m处出现了峰值，GMI效应也在此磁场的位置处出现峰值。

It does not need an external power supply to excite the rotor field and hence the field winding and slip rings are eliminated. This thesis sets up the mathematical model of the permanent magnet synchronous motor in SIMULINK.

本文主要研究了永磁同步电机交流伺服系统的建模仿真和基于TMS320LF2407A数字信号处理器的系统实现，主要内容如下：建立了永磁同步电动机在dq坐标系中的数学模型，在SIMULINK中建立了仿真模型。

With the rapid development of economic integration and constant improvement of degree of openness in the most of countries, intercourse of the trade and financial field becomes more and more frequent. Under this kind of background, economic fluctuation is easy to take place because of external shocks through foreign trade, international capital flow and other channels. So, the research of economic cycle can not be taken only in closed environment. Focusing on the open e conomy, the discussion of influence on the economic cycle fluctuation from external shocks have rather important significance.

随着全球经济一体化的迅猛发展，各国经济开放程度不断提高，各国间贸易与金融领域的交往也日趋频繁，在这种背景下，通过对外贸易、国际资本流动等渠道本国的经济将会受到外来冲击的影响而发生波动，因此，对经济周期的研究不能仅停留在封闭条件下，着眼于开放经济的背景，探讨外来冲击对一国经济周期波动的影响具有相当重要的意义。

It is found in field detection that ultra high frequency signals can diffract from the joint of transformer. The feasibility of using external UHF sensor for detecting partial discharge activities is discussed, and the external propagation characteristic of UHF electromagnetic wave is investigated via the lab experiment.

针对变压器箱体的接缝处可以衍射出局部放电特高频电磁波信号的现象，在分析变压器箱体接缝对局部放电特高频电磁波传播影响的基础上，探讨了接收天线外部检测特高频信号的可行性，并通过实验研究了局部放电特高频电磁波的外传播特性，通过对信号进行小波包分析，比较了外部接收和内部接收信号的差异。

The results indicate that in the synchronizing condition the MRF is unyielded, every point of MRF in the flow field has the same angular velocity. Under the slipping condition, with the increase of magnetic field or the decrease of slip speed, MRF may transfer from whole yield to partial yield. When the MRF wholly yields, the angular velocity of MRF increases nonlinearly with its radius, the non-linear distribution becomes more obvious as the magnetic intensity in the working gap increases. When the MRF partially yields, the yield region expands with the decrease of magnetic intensity or the increase of slip speed and the unyield region always reaches the driven rotor. The transfer torque of MRTD increases with the increase of the external magnetic field, but the transfer torque maintains a constant value approximately with the variation of slip speed at the same magnetic intensity.

研究结果表明，在同步工况下，传动装置流场中磁流变液未屈服，各点角速度相同；在滑差工况下，随外加磁场的增大和滑差转速的减小，磁流变液逐渐从完全屈服向部分屈服转变；磁流变液完全屈服时，磁流变液角速度随半径呈非线性增加，工作间隙中磁场越强，流场的非线性分布越明显；磁流变液部分屈服时屈服区域随外加磁场的增大而减小，随滑差转速的增大而增大，未屈服区与主动转子相连；稳态下磁流变传动装置传递的转矩随外加磁场的增加而近似呈线性增大，但在相同外加磁场下，传递转矩基本不随滑差转速改变而改变，表现出良好的恒转矩特性。

During the motion process, the stagnation and back commutation occur and worsen the performances of circuit breaker. According to the real interruption process, a three-dimensional(3-D) model of arc motion under the effect of external magnetic field is built based on magnetohydrodynamic, which can predict the restriking phenomena. With air vents opened to 60%, the restriking phenomena occur under 3mT magnetic field; when the magnetic field is increased to 5mT, the restriking phenomena disappears.

该文以磁流体动力学为基础建立了三维空气电弧等离子体在外部磁场作用下运动的数学模型，此模型可以预测电弧的重击穿现象，并发现当灭弧室的出口面积为60%时，电弧在3mT磁场的作用下运动时出现了重击穿现象，而当磁场增大到5mT时重击穿现象消失。

This text regards SWOT matrix as tools, has analysed inside external environment condition of the community of Shengli Oil Field and current management system, have put forward the guidelines of the development model of community of Shengli Oil Field, from the state policies, regional between economic development and resource type enterprise rule of development several respect is it separate enterprise run social urgency and necessity of function to re-recognize, have established the development model of the community of Shengli Oil Field, leading industry and ensured the measure.

本文以SWOT矩阵为工具，分析了胜利油田社区的内部外部环境和现行的管理体制，提出了胜利油田社区发展模式的指导思想，从国家政策、区域经济发展和资源型企业发展规律几个方面重新认识分离企业办社会职能的迫切性和必要性，确立了胜利油田社区的发展模式、主导产业及其保障措施。

In order to calculate the high external water pressure, the rock seepage field and external water pressure coefficient should be treated in detail.

对于外水压力的计算方法主要有渗流场分析方法和外水压力作用系数法。

Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在，'歼灭战perfuming自己与胡努特，那麼，他来到和SAT 。