查询词典 diffraction spectroscope

A new choice method of characteristic wavelength of visible/near infrared spectroscope .

一种用于可见-近红外光谱特征波长选择的新方法。

Based on the curvature of substrate and Newton ring ,a simple set for measuring the stress in films is designed,which consists of a He-Ne laser,an extended lens,a convex lens and a travelling microscope with a spectroscope.

文章使用M athem atica描绘牛顿环与迈克耳孙干涉条纹，形象地讨论了两条纹产生机理、环纹中心、环纹级次、非单色光环纹及在测量波长时方法等的差异，使教学过程更具有直观性和生动性，加速教学手段现代化进程

The driver circuit of CCD is realized by CPLD (Complex Programmable Logic Device). In the multi-functions spectroscope's optical system, ring-shape aperture illuminates is used to reduce the sample's undersurface's reflection, then enhance the measurement precision of the reflectivity.

CCD的驱动时序电路通过可编程逻辑器件CPLD来实现，多功能光谱仪的光学系统中采用环形照明技术来减少玻璃样品下表面的反射，从而提高玻璃样品反射率的测量精度。

This research combine the physical therapy method of the Chinese native medicine ion to induct and though observe clinical case in recent years , refers to "the Chinese Pharmacopoeia","Traditional Chinese medicine dictionary ", in the external use the pharmacopoeia side, chooses 49 herbs commonly used Chinese medicine. Using the flame spectrophotometer to determines K, the Na content; using the atomic absorption spectroscope to determine the content of Mg, Ca, Zn, Mn; using acidometer and the chloride ion selective electrode to determine the content of Cl; using the spectrophotometer determines the content of S.

本研究结合近年来使用中药离子导入方法治疗闭合性软组织损伤的临床病例观察，参考《中国药典》、《中药大辞典》、100余种外用中药典方，选择49味常用中草药，用火焰分光光度计测定K、Na的含量；用原子吸收光谱仪测定Mg、Ca、Zn、Mn的含量；用酸度计和氯离子选择性电极测定Cl的含量；用可见分光光度计测定S的含量。

Among them,the chemosensory properties of two molecular tweezers derived from diethoxycarbonyl glycoluril for metal ions were studied by fluorescent spectroscope.It was found that they both exhibited selective recognition towards Fe~(3+)among 13 metal ions investigated in DMF/CH_3OH(50:1, v/v)with fluorescence quenching,and formed 1:1 stoichiometry complex with Fe~(3+).

通过荧光光谱滴定考察了其中两个二乙基酯基甘脲分子钳异构体对13种不同金属离子的识别作用，研究表明在DMF/MeOH(50：1 v/v)中，它们能够很好地选择性地识别Fe~(3+)离子，与Fe~(3+)离子形成1：1的复合物并且呈现荧光淬灭效应，可作为Fe~(3+)的荧光化学传感器。

In this thesis, the advantages and disadvantages of potentiodynamic polarization curve, electrochemical impedance spectroscope and coulostatic method for studying corrosion inhibitors in acidic mediums were compared. And then the effect of three popular acid corrosion inhibitors such as thiourea, dodecylamine and propargyl alcohol on the corrosion inhibition behaviors of Q235 steel in acidic solutions were investigated by these techniques. The anodic desorption behavior and extreme value phenomenon of concentration were surveyed thoroughly as well.

本文讨论了动电位极化曲线、电化学阻抗谱和恒电量测量方法在酸性介质缓蚀剂研究中的优势和不足，在此基础上，研究了硫脲、十二胺和丙炔醇等三种常见酸性介质缓蚀剂对Q235钢在酸性溶液中的缓蚀行为和机理，并深入探讨了缓蚀剂的阳极脱附和浓度极值现象。

The silicified wood samples from Burma are studied by using polarized microscope and infrared spectroscope.

硅化木是古代树木经地质作用而形成的木化石，其主要化学成分为SiO2。

The dissertation deals with the gemology and relative spectroscopy of these rubies by using the conventional gemological methods and the modern instruments of EMPA, scanning electron microscope, electron paramagnetic resonance, infrared Fourier transform spectroscope and laser Raman spectrometer.

本文采用常规的宝石学研究方法以及电子探针、扫描电子显微镜、电子顺磁共振、傅立叶变换红外光谱仪、拉曼光谱仪、紫外可见光分光光度计等现代测试仪器，对元江红宝石的矿物宝石学特征进行了系统的研究，并结合晶体场理论分析元江红宝石的致色机理。

These composites are of interest to engineers in their own right, but when Dr Broomell and Dr Waite stuck ragworm jaws in an X-ray spectroscope they found no sign of mineralisation at all.

不过当布鲁梅尔博士跟瓦特博士将沙蚕颌齿放到分光仪里时，他们连一丁点的矿化迹象都没发现到。

Characteristic of visible light spectrum was studied on nickel in ferroalloy with grating spectro- scope and prism spectroscope .

使用光栅看谱镜和棱镜看谱镜研究了铁基合金中Ni元素看谱分析用可见光谱，计算机模拟了Fe和Ni元素的可见光谱图，摄制了数字化彩色图谱。

The teacher likes the honeymouthed little girl very much.

老师很喜欢这个嘴甜的小姑娘。

Mr. Notker Bien's interests are traveling, spending quality time with the family and long-distance-running.

诺特卡·柏恩先生热爱旅游，长跑，以及和家人一起共度美好时光。