查询词典 source free vector field

Based on the oil field practice of air drill ing applications in karamay oil field, the author summarizes and analyses air-fogged drilling informations at home and abroad, provides a set of air drill ing designing rule applicable to karamay dil field, and compiles the computor soft-ware of air drill ing parameter design guiding field operational practice.

以克拉玛依油田应用空气钻井的现场实践为依据，总结、分析国内外空气雾化钻井资料，提出了一套适合于克拉玛依油田的空气钻井设计原则，用来指导现场实践的空气钻井参教设计的计算机软件。

This paper introduces the structure, especially the technics of armature winding and the way of arrange method of the motor. Based on it, the physical and mathematical model of the armature magnetic field was found. Then making use of the FEM to compute and analyze the armature magnetic field. At last, the influence of the armature magnetic field to the main field is discussed.

本文通过对此种电机结构，尤其是电枢绕组工艺及盘列方式的简单介绍，建立了盘式无铁心永磁同步电机电枢磁场的数学模型和物理模型，并利用有限元数值计算方法对电枢磁场进行计算，分析了此种电机电枢磁场的分布情况以及它对主磁场的影响

The experiments were carried out to calibrate FDR in the lab and field, and calibration equations were verified by oven-dried method for soil samples obtained by augers. The result showed that good calibrating equations with average RMSE 0.023 m^3/m^3 were fitted in the lab, but they had poor RMSE 0.066 m^3/m^3 when used in the field. Other calibrating equations with average RMSE 0.026 m^3/m^3 were also fitted by indirect field calibration method, and they had good RMSE 0.026 m^3/m^3 when used in the field.

结果表明，室内试验获得了较好的模型参数，均方根误差平均达到了0.023 立方公尺/立方公尺，但是应用到田间条件下误差很大，均方根误差平均为0.066立方公尺/立方公尺；田间条件下也间接获得了较好的模型参数，均方根误差的平均值为0.026立方公尺/立方公尺，应用于田间时测定含水量的精确度较高，均方根误差的平均值为0.026立方公尺/立方公尺。

The paper analysed stress and strain field including the effect of rock dilatancy and fault creeping in earthquake preparation, according to coupling equation of stress and pore pressure field, the pore pressure field variation along with stress field can be calculated.

本文在研究孕震过程中包括扩容和断层蠕变效应在内的应力应变场的基础上，根据应力场与孔隙压场的耦合方程，把孔隙压场随应力场的变化定量地计算出来。

A field coil driver uses a dedicated power supply to feed its field coil to produce the strong magnetic field that makes the diaphragm react to the incoming electrical signals and reproduce sound, the stronger the magnetic field the more efficient the driver would be and the higher and lower frequencies it will respond up to the diaphragm physical and acoustical limits.

实地线圈驱动器采用专用电源给其外地线圈产生的强磁场，使膈肌反应传入的电子信号，并重现声音，强大的磁场更有效地将司机和更高和较低的频率，将应对行动膈肌物理和声学限制。

FIELD ASSEMBLY The field assembly consists of the field frame, a set of pole pieces, and field coils.

大会场 外地大会由外地框架，这是一套极片，和外地线圈。

Mark the field status you need for each field or field group under a field status group.

在字段状态组下设置好每个字段的状态。

The reason why secondary power model damage and high frequency relay disoperation usually has been explained, and the suggestions of protection and research are put forward. Systemic experimental study of waveform shape and frequency spectrum distribution of pulse electric field and pulse magnetic field is conducted with manufactured measuring systems. Waveform shape and frequency spectrum of pulse electric field and pulse magnetic field at different place including different impulse voltage and different gap are studied.

使用研制的测量系统对冲击电压放电产生的脉冲电场和脉冲磁场进行了系统的实验观测，得到了较为全面的不同电压、不同放电间隙和不同观测位置的脉冲电场和脉冲磁场的波形和频谱特征，研究了脉冲电场和脉冲磁场与冲击电压、间隙大小和高度的关系，研究了冲击电压放电产生的脉冲电场、脉冲磁场的分布特点等。

So the system COREX off gas shaft furnace process simulation and training is set up. The distribution of flow field, pressure field, and temperature field, and concentration field are obtained Technician can directly see the distribution of gas and burden flow and can understand deeply shaft furnace process principles et al. This system can compute material and energy balance and production cost et al. It can train operator and technician et al.

为此我们利用前面开发的综合竖炉数学模型，开发了利用COREX尾气的竖炉过程的仿真培训系统，以使从事此过程的技术人员能够深入了解COREX尾气竖炉还原过程的原理、反应过程等内部现象，直接观察到竖炉内部气流、物流及气体压力、温度和浓度的分布；对COREX尾气竖炉工艺可进行能流物流平衡和生产成本计算；并对操作人员和工程技术的人员可进行教学培训功能等。

In boiler field, proper atomization of high viscosity liquid fuel is the essential assurance to safe .stable and high efficient combustion for boiler; in the propulsion equipment of rockers and turbo jet-propelled engine, the atomization quality of liquid fuel is the precondition to improve combustion efficiency and supply sufficient propulsion; in the field of industrial manufacture, metal powder is made by liquid metal which is impacted by high velocity gas; in the field of agricultural irrigation, the water with certain velocity is used to strike metal disk to make insufflations proportionally to the irrigation field; in the technique of desulphurization and coal gasification, proper design of nozzle is the essential factor to advance the efficiency of desulphurization and coal transformation.

在锅炉领域，高粘度液体燃料的良好雾化是锅炉安全稳定高效燃烧的重要保证；在火箭推进装置、涡轮喷气式发动机中，液体燃料的雾化质量是提高燃烧效率并产生足够推力的前提；在工业生产领域，用高速气流冲击液态金属来制备金属粉末：在农业灌溉中，用一定速度的水流冲击金属圆盘破碎并改变方向实现对灌溉区域的均匀喷洒：在烟气脱硫、煤气化等工艺中，良好的喷嘴设计是提高烟气脱硫效率和碳转化率的重要因素。

The two-acre Dunbar Community Garden in Little Rock has served as a model for several years.

几年来，坐落于小石城，占地两英亩的邓巴社区菜园树立了一个标杆。

Jerry points to the jacket hanging in the bathroom. It's ruined, and unwearable What?

杰瑞指着洗手间里挂着的夹克，毁了，不能穿了）什么？