电子计算机

Embedded system, especially "Personal Digital Assistant", is one of the most extensive computer systems which widely used in E-business, mobile work and etc.

嵌入式系统是应用最广泛的一种计算机系统，特别是"个人数字助理"被广泛应用于电子商务、移动办公等领域。

With the development of information technology centering on computer network and pervasiveness of Internet applications, a kind of new commerce model-Electronic Commerce brings out, develops and rapidly expands in the world.

随着以计算机网络为核心的信息技术的迅速发展，国际互联网在全球的应用和普及，一种崭新的商务模式-电子商务应运而生，并在全球迅速发展和推广。

A microcomputer is used to communicate with the controller of electron probe to control the spectrometers and the sample stages as well as the scalers. Data of X-ray intensity are acquisited when the sample stages are scanning in a certain step and time period. X-ray images were formed and shown in colors or in 3 dimensions, and have no distortion at low magnification. Hidden zonate phenomena of a picrite were found.

摘 要：用微型计算机与电子探针控制机通讯，实现对各道波谱仪和样品台的实时控制，以及对各道定标器的数据采集；在选定的样品区域上设定采样步长和时间，边移动样品台边采集各道X射线强度；用伪彩色、三维视图和内插放大等方式显示图像，解决了低倍X射线像失真问题，观察到了辉石的隐环带等现象。

Then,in the early 1940s, John Mauchly and J.Presper Eckert,Jr.,of the University of Pennsylavania designed and built a vacuum tube computer,which they called the electronic numerical inegrator and calculator;it was completed in 1945 and installedat Aberdeen Proving Ground,Maryland. ENIAC used 18000 electron tubes,which required tremendous amounts of power;its failure rate wa high and it was difficult to program because a plugboard was required.

那么，在20世纪40年代初，约翰mauchlyj.presperEckert先生和霍尔特，该大学设计建造了pennsylavania真空管计算机，它们被称为电子计算器、数值inegrator；这是1945年建成并installedat马里兰州的阿伯丁。eniac使用18000电子管，这需要庞大的权力；它的失败率偏高，难以以佤节目因为插件需要。

In 1970, his father rented a computer and he precociously rewrote its software.

由于在普林斯顿获得了一个电子工程学位，后来又获得了计算机科学方面的硕士学位，让他得到了在帕罗奥多市施乐研究中心工作的机会。

CIT-2000SMP portable fluorescence analyzer can ore, concentrate on-siteRapid analysis, external cooling, semiconductor or proportional counter of the two probes, to meetThe mining, and mining sector to higher accuracy of portable analyzer requirements.

CIT-3000SMP便携式X荧光分析仪是集当今最新电子技术、计算机技术和核分析方法于一体，具有微机化程度高、人机界面友好、分析精度高、分析速度快、性能价格比高等特点，成为相关企业进行生产控制和科学研究的首选设备。

ABSTRACT With wider use of electronic equipment, the problem of electromagnetic compatibility in power stations and substations become more and more serious and protuberant.

随着电子技术和计算机技术的发展，电站和变电站内的电磁兼容问题的影响日益突出。

It is very complexity to measure radon and its daughter.

氡及其 子体的测量是涉及到核辐射探测技术、电子技术、计算机技术等多门学科的复杂问题。

Especially, spinel half-metal materials have high Curie temperature, stable physical properties, and large room-temperature spin-polarization so that they have huge potential application in many areas including read-write magnetic head of computers, magnetic static-state random memorizer, magnetic sensors and spin transistors.

尤其是尖晶石结构半金属材料因居里温度高、性能稳定、室温自旋极化率大等优点而被认为是最具应用潜力的自旋电子材料之一，它在计算机读写磁头、磁静态随机存储器、磁性传感器、自旋晶体管等自旋电子器件中极具应用潜力。

Relay emails through a computer or network without permission ?

丙通过计算机网络传送电子邮件未经允许吗？

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。