查询词典 radio frequency

InNSb alloy films were prepared on GaAs (001) substrates by N2 radio frequency plasma-assisted molecular beam epitaxy, the N composition and micro-structures of the samples were characterized by atom force microscopy, scanning electron microscopy, X-ray diffraction and Raman spectroscopy.

本文利用射频氮等离子辅助分子束外延（RF-MBE技术在GaAs（001）衬底上生长稀氮InNSb半导体薄膜，并通过原子力显微镜、电子扫描显微镜、X射线衍射仪、拉曼散射光谱等测量手段对样品的微结构和氮组分等进行了表征。

Infrared upconversion and optical storage thin film CaS∶Eu, Sm has been successfully developed by electron beam evaporation and radio frequency magnetron sputtering. Infrared upconversion efficiency of CaS∶Eu, Sm thin films with different thickness has been investigated by using the ultrashort infrared laser pulses with different FWHM.

采用电子束蒸发和磁控溅射技术制备了具有红外上转换和光存储特性的电子俘获材料CaS∶Eu，Sm薄膜，利用不同脉宽的超短红外激光测试了它们的红外上转换效率，指出CaS∶Eu，Sm薄膜的红外上转换发光效率不仅与制备工艺及热退火工艺密切相关，而且存在"耗尽"现象。

The techniques of optical beam induced current have found wide-spread applications in characterizing many semiconductor and optoelectronic devices. A two-photon confocal microscope is adapted for investigating the dynamics of light emitting devices through the contrast mechanisms of two-photon DC and radio frequency optical beam induced current.

摘要 光致电流的技术至今已经广泛的被应用在检测半导体特性以及光学元件上，共焦显微镜搭配双光子激发技术相当适合用来检测LED元件，与单光子激发相较之下，利用脉冲雷射双光子激发术可以使用光子能量小於能隙的长波长光源来完成激发，并且具有高度的空间解析度。

The analytical results of radio frequency glow discharge optical emission spectrometry further proved that the content of each element in this series of stainless steel reference materials had good graded distribution. The linear investigation of characterisation elements indicated that the linearity was also good.

射频辉光放电发射光谱的分析结果进一步证明：本套不锈钢标准样品的各元素成分含量有良好的梯度分布，对定值元素进行成线性考查，线性关系良好。

The influence of power (5-18 W) and discharge pressure (5-15 Torr) on emission intensity of element and stability of intensity ratios in middle-low alloy steel using radio frequency glow discharge optical emission spectrometry were investigated, and the reasons of the influence were analyzed.

考察了射频辉光放电发射光谱法中功率(5~18W)和放电气压(5~15Torr)对元素谱线发射强度及相对强度稳定性的影响，并分析了引起影响的原因。

This paper first introduced the concept of radio frequency identification technology, the rise and development.

本文首先介绍了有关射频识别技术的概念、兴起和发展。

On the basis of market mechanism, and puts forward Suggestions of radio frequency resource allocation.

在此基础上，提出市场机制下无线电频率资源的分配建议。

Radio Frequency Identification technology is widely used in modern application.

无线射频辨识系统广泛的应用在现代的生活中。

Radio frequency cards is a relatively new technology which is developing in recent years.

无线射频卡是在最近几年来才发展的一项比较新的技术。

Methods The Radio Frequency Identification is applied to design this system.

利用射频识别技术进行了整个系统的设计。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。