有关电的

I watched many films about nature like Home, The story in the arctic pole and The story about a little bear.

我看了很多电影像家一样的性质有关，北极极点的故事和有关故事有点紧。

One of the intrinsic and unique microstructural features in ferroelectric ceramics is that their grains consist of domain s.

电畴为铁电陶瓷固有的独特微观组织特征之一，铁电陶瓷的许多性能均与其密切有关。

The exciting effect of motherwort herb on the uterine smooth muscle may have something to do with the alteration of the ion concentration in relation to myoelectric activity, resulting in the increase of myoelectric activity of pacesetter cells as well as in the acceleration of depolarization of spike activity.

益母草对子宫的兴奋作用可能是通过改变了与电活动有关的一些离子浓度，使起步细胞电活动加强及动作电位去极化速度加快所致。

In this dissertation, based on the theories of combustion, electrostatics and gas discharge and the relevant experimental results, a mathematical model is set up for simulating the precipitability of fly ashes from coal burning, which includes the calculation of fly ash characteristic parameters and the estimation of the ESP performance.

本文利用燃烧学、静电学和气体放电理论以及有关实验研究结果建立了包括飞灰特性参数计算和电除尘器性能估算两个方面的燃煤飞灰电除尘特性模拟数学模型。

This project was established based on the first cooperative development of optical in situ real time detecting technique probing the atomic scale layer-by-layer epitaxy growth of oxide film. Over the last three years, we have given full play to the advantages and characteristics of both sides and have finished the assumptions and plans of this subject satisfactorily. 1. In Institute of Physics, we set up advanced oblique-incidence reflectivity difference equipment and wrote one data acquisition procedure that made the simultaneous detection of optical signal and RHEED signal into reality. 2. The first observation of sustained oscillations over hundreds of monolayers in both real and imaginary signals during the epitaxy growth of SrNb0.1Ti0.9O3 on SrTiO3 substrate in LMBE testifies that oblique-incidence is an excellent method to detect and monitor film epitaxy growth real time. 3. For the first time, we verify that oblique-incidence reflectivity difference method can be used to monitor the layer-by-layer growth mode during continuous growth through the correspondence between optical signals to atomic or molecular step edge density on the growth surface. 4. Phenomenological analysis shows that optical signals comprise three parts, the first is proportional to the average thickness of the film and depends on the bulk phase dielectric response; the second is proportional to the coverage of terraces and depends on the dielectric response of atoms or unit cells in the terrace; the third is proportional to the coverage of step edges and depends on the effective dielectric response of atoms or unit cells at step edges. This makes oblique-incident reflectivity difference technique a quantitative macroscopic method to monitor film growth.

中文摘要：本课题是在合作首次发展了氧化物薄膜原子尺度层状外延生长光学原位实时探测方法的基础上立项的，三年来，我们充分发挥双方的优势和特点，圆满完成了课题的设想和计划。1、在物理所建立了一套先进的光反射差法装置，编写了计算机系统的数据采集程序，实现了两路光学信号和RHEED数据的同步采集和显示。2、用激光分子束外延在SrTiO3基底上生长SrNb0.1Ti0.9O3薄膜，首次观测到连续外延几百个原胞层，周期振荡的光反射差实部和虚部信号，证明了光反射差法是一种能原位实时探测与监控薄膜层状外延生长的好方法。3、首次验证了通过对生长表面原子或分子台阶密度的响应，光反射差法可用于原位实时监测在连续生长条件下薄膜的层式生长模式。4、通过唯象理论的研究，证明光反射差信号由三项组成，第一项只与薄膜的平均厚度和宏观光学电介质常数有关；第二项与分子台阶面覆盖度和台阶面上分子层的光学电介质常数有关；第三项与台阶边缘的覆盖度成正比，并和在台阶边缘的分子的有效光学介电常数有关。

In this paper, the principle in measuring the vacuum of sealed vacuum device with Penning discharge is analyzed, the Penning discharge model of sealed vacuum device is established, the experimental device is designed, and pressure-ion current chart is presented.

分析了利用潘宁放电来测量两个电极的密封电真空器件真空度的工作原理，设计了测试实验装置，初步建立了密封电真空器件的潘宁放电模型，给出了有关实验数据。标签潘宁放电密封电真空器件真空度 Penning discharge sealed vacuum device vacuum

And by using the initial conditions as well as the end conditions, the dynamic problem is then transferred to a second kind Volterra integral equation about the function of the axial strain with respect to time which can also be solved successfully by the interpolation method. For piezoelectric and pyroelectric hollow cylinders, by following the solving procedure for elastic hollow cylinder and by using the electric boundary conditions, the dynamic problems are transferred to two Volterra integral equations about two functions of time, one is axial strain and the other is related to electric displacement, which can also be solved efficiently and quickly by employing interpolation method. The elastodynamic solutions of hollow spheres, which are made of elastic, piezoelectric and pyroelectric materials, respectively, for spherically symmetric problems are also obtained.

对于弹性空心圆柱，通过引入一特定函数将非齐次边界条件化为齐次边界条件，然后利用正交展开技术，导出关于时间函数的方程，再结合初始条件和端部边界条件，将原问题转化为关于一个时间函数的第二类Volterra积分方程，运用插值法可给出此积分方程的解；对于压电和热释电空心圆柱，利用求解弹性空心圆柱相似的方法，再结合电学边界条件，原问题转化为关于两个时间函数（轴向应变和与电位移有关的函数）的第二类Volterra积分方程组，同样可用插值法来构造相应的递推公式高效地求解此积分方程组。

Of or relating to or used in the production of electricity by waterpower.

由水力产生电，与之有关，或使用这样产生的电。

This dissertation applies virtual instruments technique in the field of servo valve CAT for the first time and makes a servo valve static and dynamic state characteristic test bedstand based on virtual instruments. Relevant theories and methods are also studied.

本文首次将虚拟仪器技术应用在电液伺服阀CAT领域，研制出一套基于虚拟仪器的电液伺服阀静、动态特性测试综合实验台，并对电液伺服阀静、动态特性测试的有关理论及方法进行了研究和探索。

METHODS The electronystagmogram,posturogram and related parameters of40normal subjects and82patients suffering from vertigoes were measured with electronys-tagmographyand posturography.

目的 测定与分析眩晕患者的前庭眼反射与前庭脊髓反射功能。方法用眼震电图描记法和姿势描记法测定40例健康者和82例眩晕患者的眼震电图和姿势描记图及有关参数。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。