optical 考研GMATGRE高考六级

An optical fiber is a dielectric (nonconductor of electricity) waveguide made of glass or plastic.

是一种介质（绝缘体电）波导的玻璃或塑料。

We found that porphyran is a kind of good material for optical limiter.

研究发现，卟啉类反和吸收材料有很好的限幅作用。

They concentrated on better definition of the optical image.

他们致力于提高该影像的清晰度。

Slit lmp microscope is an ophthalmologic opticalinstrument used to check preocular optical magnification .

裂隙灯显微镜是借助放大原理，检查眼前部和眼内部的眼科仪器。

The ADM also provides for dynamic bandwidth allocation, optical hubbing, and ring protection.

ADM还用于动态带宽分、压制阴模法以及环保护。

Aryl substituted polyacetylenes and their derivatives exhibit a lot of novel optical, electric, magnetic properties.

芳基取代聚炔及其衍生物呈现出电磁等许多新颖的性能。

The synthetic medium of optical N acylalanines was N (2,6 xylyl) alanine.It was reacted with 1 menthol and prepared into its menthol esters which were purified by TLC, resolved and determined by HPLC.

活性杀菌剂的合成中间体N-（2，6-二甲苯基）-丙氨酸与l-薄荷醇在催化剂作用下，生成非对映异构体的薄荷醇酯。

By inserting a tube into the melted iron to form a greybody tube and to make the emissivity steady.The temperature of the melted iron can be obtained using a optical fiber thermometer.

其中一种途径即利用一个空芯导管插入铁水中,形成一个近似灰体腔,使腔内铁水表面发射率基本不变,然后利用比色测温仪示出温度。

For one is beautiful is the brand, from direct current to gigacycle per second analogy, the composite signal, the radio frequency, the optical fiber, the micro controller and corresponds IC to have.

为一美系品牌，从直流到千兆赫的类比、混合信号、射频、、微控制器及通信IC均有。

According to the properties of basic points of lens group and the varifocal principle of lens group,a varifocal optical system which has a fixed image space principal point has been designed.

根据透镜组基点性质和透镜组可变焦原理,设计定第二主点变焦系统。

This machine can motorise pay-off not only loose tube of optical fiber but also loose tube of optical fiber ribbon, and it can shut down once buldgy part is detected.

该机主动放线既可用于松套管又可用于带松套管的放线，并具有鼓包检测和停机功能。

New York and London have been connected by a giant "telectroscope"- a optical device placed under Brooklyn Bridge in New York and another one on the Thames River in London.

近日，一套巨型望远镜将纽约和伦敦“连”在了一起，其中一架望远镜安装在纽约布鲁克林大桥下，另一架则在伦敦泰晤士河上。

For the reason why optical activity of mesomer is counteracted classical answer was not convincing. By use of the helix theory and stable staggered conformation answer can be obtained.

指出了内消旋体消旋原因传统解释的不合理性。利用螺旋理论和稳定的交叉式构象，合理地解释了内消旋体消旋的原因。

The only way to make a real-time kinoform is to use the liquid crystal spatial light modulator.And the kinoform is valuable to optical information processing and optical measurements.

摘要利用液晶空间调制器制作相息图是目前惟一的一种能实现动态实时计算全息的方法，它在信息处理和测量方面具有重要的应用价值。

The effects of double coating on the pores of lime titania type stainless steel electrode are studied with high speed cinecamera, oscillograph, optical microscope, SEM with EDS, etc.

采用平板堆焊、高速摄影、波形分析、金相、扫描电镜能谱分析等测试方法，研究了双层药皮对钛钙型不锈钢焊条气孔的影响。

Based on the server-based optical network architecture, the dual fiber link and IP calking for Optical Burst Switching (OBS) are proposed to abate the restriction of optical devices.

由此提出了双链路与IP插空联合的突发交换解决方案，以缓解子器件瓶颈的限制。

Research on the failure reasons of the cooling tube were carried out by means of macroexamination, thickness measurement, X ray diffraction, optical microscopy and chemical analysis.

采用宏、微观分析、化成分分析等手段,对冷却水管的腐蚀穿孔进行了失效分析。

As a practical example, an astigmation corrected scanning flat holographio concave grating (SFHCG) is designed and some results of the numerical and optical experiments are given.

给出一消像散SFHCG的设计实例和用这块栅所做的实验结果。

In the usual lives, laser beam need either propagation through optical system to interreact with other material or in order to satisfy the parameter require.

在实际应用中激束要通过系统后与物质相互作用或为了满足参数要求需要通过系统加以变换。

On the basis of theories of plasma physics and optical spectroscopy a new method named Multilineal Spectroscopy Analytic Solution for diagnosing are plasma is proposed.

根据等离子体物理和谱理论，建立了一种新的电弧等离子体的测试方法─—谱多线解析法，可对未知比的混合电弧等离子体的成分、温度甚至压力的空间分布作同时测定。