查询词典 Bosworth Field

It is an useful work to analyze distribution of track and field item in our country, which is helpful for learning present status and future development of track and field sport of our country.

我国幅员辽阔，认真分析田径运动项目在我国各地的分布状态对了解我国田径运动的现状和规划未来的发展将是一项有益的工作。

It shows that college students reject track and field sports is very common contrasting with the sports value. How to lead the students to study the track and field sport is the responsibility of college teachers.

结果表明，大学生拒绝参与田径运动的学习的现象非常普遍，与该项目本身的健身价值反差很大，因此引导学生进行田径运动学习是高校教师的重要责任。

The migration effect of electric field is dependent on strength of electric field and serum.

电场的作用依赖于电场强度和血清成分。

These settings apply to the %field field in every content type in which it appears.

这些设置适用于出现在所有内容类型中的%field 字段。

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。

Permanent magnet synchronous motors have been widely used as AC drives over the last two decades due to their high efficiency, high power density and no dc field winding in the rotor. It is well known motion control of PMSM requires accurate position and velocity signals to realize field orientation.

永磁同步电动机由于无需励磁电流、运行效率和功率密度都很高，在过去的二十年里已被广泛地应用在交流调速传动中，但它的高性能控制需要精确的转子位置和速度信号去实现磁场定向。

According to the analytic result of eletric field, winding end insulating structure is improved and short cushion-block and non oil-gap structure is put forward in the region where electric field is centralized.

根据电场分析的结果，针对场强集中，存在绝缘隐患的部位，改进了绕组端部绝缘结构，提出了短垫块结构、无油隙结构。

The phase of the magnetic field in this startup winding is shifted from the phase of the mains power, allowing the creation of a moving magnetic field which starts the motor.

启动绕组磁场的相位随着电网的相位变化而变化，从而产生一个启动电机的旋转磁场。

In order to recognize field mature tomatoes under natural condition correctly and finish their automatic picking successfully,the recognitionmethod based on color features of field tomatoes was studied.

为正确识别自然条件下田间成熟番茄，顺利完成其自动采摘，研究了基于颜色特征的田间番茄识别方法。

LES cooperated with the second order full extension ETG finite element method is applied to simulate three typical problems concerned with convection heat transfer with sufficient experimental data. By comparing the numerical results with the experimental results, LES is proved to be of better accuracy and stability when it is used to solve the problems concerned with convection heat transfer. The time history of the flow field and temperature field can be reflected better, and abundant information of the fields can be obtained. Furthermore the details of the change in the vortex structure can be captured.

应用大涡模拟与二阶全展开ETG有限元离散格式相结合的方法对具有实验基础的三个典型对流换热问题进行了数值模拟，并将模拟结果与相应的实验结果进行对比，证明了大涡模拟应用于对流换热问题中具有较高的稳定性和精度，能够较好地反映流场和温度场的时变过程，提供丰富的温度场和流场信息，捕捉流场中旋涡结构的变化细节，尤其适合于边界形状复杂的区段内含有大尺度各向异性涡的流动和换热问题的计算。

Apllied the data of QuickBird-2——the highest resolution remote sensing,and based on the theory and methodology of fractal geometry,we have quantitatively studied remote sensing lineations in Gaolong gold deposit of Guangxi.

采用Quick Brid-2高分辨率卫星遥感数据，通过分形几何学的盒计维数法，定量研究广西高龙金矿区遥感线性构造。

So, sometimes, to change the color can not be your food (referring to the above-mentioned crustacean) has been a sign of boiling over.

所以，有时，来改变颜色，不能你的食物一直是沸腾了的迹象。