查询词典 field-glasses

The present age China, teacher special field develop the focal point already becoming education reform attention, junior middle school thought morality class teacher special field develops concretization in being that teacher special field develops in ideological and political education.

当代中国，教师专业发展已成为教育改革关注的焦点，初中思想品德课教师的专业发展是教师专业发展在思想政治教育中的具体化。

In summary, various key experimental conditions in electron acoustic imaging of ferroelectric domains were systematically studied. The optimum experimental conditions to obtain EAI of domains with good quality and the factors important to image analysis have been presented. The piezoelectric vibrator model and calculation of motion equation are helpful for explaining the imaging mechanism and related experimental phenomena. The sample holder with variable electric field was designed. The domain movement of BaTiO〓 ceramics and crystal under lateral and longitudinal applied electric field and domain movement of PMN-PT crystal under longitudinal poling electric field were observed. The application of SEAM on revealing of ferroelastic domains, imaging of residual stress distribution in ceramics coatings and around the pores on the surface of ferroelectric ceramic composite have been reported respectively. All these works enriched the study of electron acoustic imaging and extended the application of SEAM in the characterization of materials.

综上所述，本文系统地研究了各项关键实验条件对电畴电声成像的影响，指出了获得最佳畴结构电声像的条件和成像分析中应当考虑的各种影响因素；提出了解释电畴电声成像的压电振子模型，在此基础上推导并求解了压电振子运动方程，并对一些实验现象作出了解释；成功地设计了可变电场的样品台，观察了BaTiO〓陶瓷和晶体在横向电场作用下的畴运动，PMN-PT晶体在纵向极化电场作用下的畴运动；探索了电声显微镜在铁弹畴成像，陶瓷涂层应力观察，陶瓷自然表面气孔周围应力成像的应用，这些研究，丰富了电声成像的学术内涵，拓展了电声显微镜的应用领域。

The research aim of this thesis is the winding end insulating structure of oil immersed power transformer 110kV . Beause of the very asymmetric electric field, the higher electric field would apeared in the oil-gap and partial charge will easily engendered in the wedge oil-gap between static ring and head block of winding end.The two-dimensional isoparametric and finite element method is used for analyzing and calculating the electric field distribution in high voltage winding end insulating structure.

本文以110kV油浸电力变压器绕组端部绝缘结构为研究对象，针对绕组端部绝缘结构中静电屏与垫块之间存在楔形油隙区，致使电场分布很不均匀，油隙区中的电场强度较高，容易产生局部放电的特点，采用二维等参元有限元法及有限元软件ANSYS电磁场分析功能对高压绕组端部绝缘结构进行电场计算分析。

A seven-node difference scheme of the diffusion equation was proposed to study the behaviors of transient electromagnetic field in complicated 3-D geoelectric body. Models of roadway and anomaly body were set up for simulating the transient field excited by a vertical magnetic dipole source. The result of numerical simulation shows that the presence of low resistive conductor leads to noticeable distortion of isolines for the "smoke ring" field, whereas the distortion is not so obvious where the roadway and the poor conductor are located.

为了探讨复杂三维地电体中瞬变电磁场的响应特征，推导了三维扩散方程的七点差分格式，建立了巷道和异常体模型，并对垂直磁偶源激发的瞬变场进行了数值模拟，观察到早期&烟圈&场在低阻体处等值线发生的明显畸变，在巷道和高阻体处的畸变较弱，随着时间的增加异常体的影响逐渐减弱。

To study the effect of papermaking wastewater irrigation on soil hydrological properties in saline reed field, different wastewater irrigation frequencies were employed in the saline reed field of Yellow River Delta. Soil infiltration course and hydrological properties were determined in field and laboratory. After wastewater irrigation, the change of the soil pH value, soil salt content and soil hydrologic-physical properties were observed. The results were showed that: 1 After wastewater irrigation, the mean reduction of soil pH value was 6.0%.

为研究造纸废水灌溉对黄河三角洲内陆盐碱芦苇地土壤水文特征的影响，通过设置芦苇地不同废水灌溉次数下的随机区组试验，采用田间测量土壤入渗过程和实验室内测定水文物理参数相结合的方法，分析造纸废水灌溉前后土壤pH值、含盐率及土壤水文物理参数的变化。

It is valuable to get the distribution of the velocity field, temperature field and concentration field that are formed in the process of molecular distillation.

准确获得刮膜分子蒸馏器内流体的速度、温度及浓度分布具有十分重要的研究意义。

In terms of physical principles and effects, several kinds of typical magnetic field measurement technology are reviewed in this paper. And according to recent progress in this field, it is presented that the magnetic field measurement technology and apparatus will become digital and intelligent with high accuracy, high stability, high resolution as well as microminiaturization.

本文沿物理学原理和效应的脉络对目前比较常用的磁场测量方法进行介绍，并依据近年来的进步特征指出，高准确度、高稳定度、高分辨率、微小型化、数字化、智能化是磁场测量技术及仪器发展的必然方向。

Keywords: UFO, Flying Saucer Principles, Electric Field, Magnetic Field, Electromagnetic Field

因为周围强大电场的存在，飞碟离地很近飞行时，往往引发闪电和风暴。

The cavity field spectra will be multi peak structure and the peak number increases quickly with the field intensities when the initial field is in superpositions of number states.

当初始光场为光子数态的叠加态时，腔场谱在强耦合情况下一般为多峰结构，峰的个数随着初始平均光强的增大而增加。

The energy achieves in a big way, for - 1854.458 a.u., EH increases along with the electric field increases gradually, when F=0.01 a.u., the EH value obtains the maximum value, is - 0.2559a.u., continues along with the electric field to increase, energy level EH has the reduction tendency, EL increases along with the electric field reduces gradually.

时能量达到最大，为-1854.458 a.u。，EH 随着电场的增加逐渐增大，在F＝0.01 a.u。时，EH的值取得最大值，为-0.2559a.u。，随着电场的继续增大，能级EH有减小的趋势，EL随电场的增大逐渐减小。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。