查询词典 nm.

An Nd:YAG Q-switched laser operating at a wavelength of 266 nm, a pulse duration less than 10 ns, and a repetition rate of 10 Hz, was used to ablate a ZnO target of 99.9% purity.

所使用的光源为Nd：YAG Q-switched雷射，其波长为266 nm、脉冲宽度小於10 ns、重覆频率10 Hz；使用的靶材为纯度99.9％的氧化锌。

The results of SEM and AFM show that the obtained titania powder from the solvent of distilled water and absolute alcohol is intact solid and spherical particle with smooth surface and perfect dispersibility. The crystalline size is about 300 nm.

SEM和AFM结果表明，以去离子水和无水乙醇混合液为溶剂制备的TiO2粉体为完整的买心球形颗粒，颗粒表面非常光滑，分散性比较好，粒径约为300 nm。

Molecular iodine has rich strong absorption lines near 532 nm that can provide the absolute references for frequency stabilization. A monolith solid laser was tuned at the spectrum of transition R (56) 32-0 of iodine molecule with new modulation frequency 375 kHz.

使用532 nm单块固体激光器，在375 kHz新的调制频率下，利用调制转移技术，将激光频率调谐到127I2的R(56)32-0跃迁的吸收谱线，并观察到该吸收谱线相应的15条超精细结构分量。

Relationships between reflectance, transmittance, absorptance and thickness of Cu films in the wavelength selected 310, 350, 400, 430, 550, 632, 800, 1200 nm have been discussed.

选定波长为310、350、400、430、550、632、800、1200 nm时对薄膜的反射率、透射率和吸收率随膜厚变化的关系进行研究。

A method for the determination of high-content of copper in copper materials by flame atomic absorption spectrophotometry using sub-sensitive spectral line at 249.20 nm is reported in this paper.

中文摘要：利用铜的原子吸收光谱次灵敏线249.20 nm，并适当偏转燃烧器角度，原子吸收分光光度法测定含铜物料中的高含量铜。

Its UV-vis spectrum exhibits two absorption maxima at 340 and 638 nm.

它的紫外可见光谱在340和638 nm处呈现两个吸收峰。

Curve a in Figure 3 is an absorption spectrum of an aqueous CTAB solution, in which there are no remarkable absorption bands in the region between 230 and 300 nm.

曲线A在图3是一个吸收光谱一水CTAB的解决方案，在其中有没有显着的吸收谱带在该地区之间的230和300 nm左右。

In ethanol medium, the molar absorptivity of the chelate is 7.82×10^3Lmol^(-1)cm^(-1) at 595 nm.

在乙醇介质中，络合物最大吸收波长λmax=595 nm，ε=7.82×10^3Lmol^(-1)cm^(-1)。

The ultrathin multilayer film of poly (diallyldimethylammonium chloride) and polyvinylidene fluoride has been prepared by the layer-by-layer static self-assembly method. The PVDF/PDDA multilayer film with the thickness ranging from about 30nm to 150 nm the thickness of each layer is about 9nm.

聚二烯丙基二甲基氯化铵和极化处理后的聚偏氟乙烯复合超薄膜是通过层与层的静电自组装方法制备的，厚度约30～150 nm，每层膜厚度约为9 nm。

By Tyndall effect, electronic microscopic and super-filtering experiments, it was proved that V3-Al2Cl catalyst is a colloidal catalyst in butadiene-containing toluene solvent, which belongs to a multiphase catalyst. The diameters of the catalytic particles are from 1 nm to 100 nm, and the active sites are on the surface of the amorphous colloidal particles.

通过Tyndall效应、电镜观察和超过滤实验，证明了在溶有丁二烯的甲苯溶剂中V3-Al2Cl催化体系以小颗粒分散，粒径在1～100 nm之间，为胶体催化剂，属于高度分散的多相催化体系。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷