查询词典 reflection grating

Products include 3D grating chip, single-mirror high-transparent, milky film, transparent film Prodenia, translucent matte film, double mirror porcelain white films, single-mirror-white films and so on dozens of different lines PP sheet.

产品包括3D光栅片，单镜面高透明片，乳白片，透明斜纹片，半透明磨砂片，双镜面瓷白片，单镜面乳白片等几十种不同纹路PP片材。

A long period fiber grating is a band rejection fiber device with periodical retractive index modulation formed along the axis of the fiber core.

长周期光纤光栅是在光纤纤芯中沿轴向形成折射率周期性调制的带阻型光纤器件。

The RIE and RIBE methods were presented to transform supermicro pattern. Through studying the influence of etching parameters on surface profile, we gained perfect grating structure on silica substrate.

提出并研究了用RIE和RIBE方法实现微结构面形传递，详细研究了各种刻蚀参数对最终面形的影响，实现了在石英基底上的理想传递。

The properties of grating formation are studied specifically when the writing light beam incidents normally and slantingly, respectively.

分析了Bragg光栅的二阶温度、应变灵敏度和温度-应变交叉灵敏度对测摘要一量结果的影响。

The research work is mainly focused on the phase mask method, the characteristics of near-field diffraction of the phase mask are analyzed with scalar diffraction theory, and the properties of grating formation are studied specifically when the writting light beam incidents normally and slantly, respectively, with some important conclusions derived.

我们首先采用按理想波导模展开的方法建立了FBG中的模式耦合方程，并用模式耦合理论研究了FBG中的模式耦合现象，导出了FBG的反射光谱和透射光谱的理论表达式，采用数值模拟计算的方法研究了FBG的结构参数对其反射光谱特性的影响，得出了若干重要结论。

Compared to other building materials including wood, solid steel plate, concrete structural member or aluminum product, the grating enjoys the following advantages: light, stong, economical and durable, slipproof, safe, transparent, ventilated, free of water and dust accumulation, easy for erection, wide in application, beautiful in appearance, fireproof and explosionproof.

它比起其它建筑材料包括木材、实心钢板、混凝土结构件或铝制品来说具有如下优越性：1。重量轻 2。强度高 3。经济耐用 4。防滑安全5。透光通风6。不积水、不积灰7。安装简便8。用途广泛9。外形美观10。防火防爆。

Secondly, it specifies the system solution of automatic Gleithretter thickness testing in detail, thickness testing technology using grating, serial communication achievement solution of PLC control system. Achieving data sampling by applying of the PCI200 subdivisional card. And then designs thickness testing system software using Borland C++ Builder 6.0 for the application of automatic control of Gleithretter thickness testing sorting , the experiment.

其次详细叙述了滑片厚度自动检测系统总体设计方案及要求，光栅厚度检测技术，上位机与PLC控制系统串行通信的实现方案，开发应用PCI200细分采集卡实现数据采集，利用Borland C++ Builder 6.0平台设计开发的滑片厚度自动检测系统软件，来实现对滑片检测分选的自动控制，实验。

Same grating gate talocalcaneal sepuent alphabeticalorder a set of pictures of each picture in the appropriate bit in the information.

统一平栅栅距初等间距挨次摆列一组图片洋每张图片的相答位边新闻。

Esign and roughness analysis of trapeziform grating in DVD optical head.

VD光学头中的梯形光栅设计和表面粗糙度分析。

To meet the needs, a novel low-noise fiber laser with compound cavity structure is designed. The stable single-mode operation is realized by using a transient self-written fiber grating, produced by the effect of saturable absorption within a section of unpumped erbium-doped fiber, as narrow band filter for mode selecting and linewidth squeezing. Through optical path modification, the spectral signal-to-noise ratio is better than 62 dB.

激光器采用复合腔结构，以掺铒光纤作为工作物质，通过在未被抽运的掺铒光纤中形成的瞬态自写入光纤光栅的窄带滤波特性进行选模和压窄线宽，产生稳定的单频激光输出；经过光路改进，激光输出光谱信噪比优于62 dB；利用光电负反馈电路，弛豫振荡峰下降了约25 dB，低频段强度噪声也大为改善，有效地抑制了光源的强度噪声。

When this condition occurs, inbound replication with the source partner is stopped on the destination domain controller and event ID 2042 is logged in the Directory Services event log.

计算机密码学是研究计算机信息加密、解密及其变换的科学，是数学和计算机的交义学科，也是一门新兴的学科。

Instructions: click on the thumbnails to see a larger image, then use the left-right arrow keys to scroll through the slideshow.

使用说明：滑鼠点在小图上即可放大观赏。开启后键盘左右键可用来换照片。