查询词典 diffraction spectroscope

The properties and structures have been investigated as well by X-ray diffraction, infrared absorption spectrum and differential thermal analysis. The solvent dilatability and gelation ability, viscidity and organic content have been tested.

以十六烷基季铵盐为有机化改性剂，用微波辐射加热的方法制备出了性能优良的有机膨润土，利用XRD、FT-IR、DTA等方法分别对合成的钠基膨润土和有机膨润土的结构进行了研究和表征；并初步测试了有机膨润土的溶胀性、凝胶性能、粘度和有机物含量。

Simulation experiments make sure that the dilatometer is able to detect the expansion changes in low temperature. The high temperature reheating process with dilatometer analysis indicate that the firing temperature are little higher than 900℃ for one sample and lower than 900℃ for other five samples with firing temperature ranges of 550~650℃, 650~750℃ and 750~900℃. The results from mineral composition analysis of the samples by X-ray diffraction provide further evidence of the reliability of the thermal expansion measurement.

模拟实验表明，所采用的热膨胀仪能适应低温法测温实验；用热膨胀高温法测出早期陶片中有一块样品原始烧成温度略高于900℃，其余5块样品皆低于900℃；通过热膨胀低温法较为准确地测出这五块样品原始烧成温度是分别介于550~650℃、650~750℃、750~900℃三个范围，而X射线衍射分析结果从物相成分的角度证明了测温结果的可靠性。

The single crystal X-ray diffraction analysis showed that the asymmetric diol 8 isan "abnormal" McMurry reaction product.

单晶X-射线衍射分析结果证明，不对称的二醇8是一种新型的偶联产物。

Diffraction is the process by which sound waves experience a change in their direction of propagation after encountering an obstacle; it is equivalent to a bending effect.

衍射是声波遇到障碍物后改变其传播方向的一种过程，相当于一种弯曲作用。

The lowest loss mode fields and the far field divergency angles of output beams of the UPCUR are calculated by use of Prony method. The relations between the mode discriminability, far field divergency angles and the parameters of the resonator are analyzed. And the theoretical results show that the output beams with diffraction limit quality can be obtained by using the UPUR with small magnification (M=1. 3), which is much better than the traditional unstable resonator under the same conditions.

采用Prony方法计算均匀相位输出耦合镜非稳腔的输出模场分布及远场方向性，分析了模式分辨率和光束远场发散角与系统各参数之间的关系，理论计算得到的结果表明，采用均匀相位输出耦合镜非稳腔，可以在小放大倍率(M=1.3)情况下得到质量达到衍射极限的输出光束，远远好于同等条件下的常规非稳腔，因此这种新型的谐振腔适用于在工业用千瓦级氧碘化学激光器。

The distributed source results from too many multipaths that are induced by reflection, scattering, diffraction and refraction from objects in complex environment and couldn't be described discriminatingly. Thus the source arrives at array antennas in a continual angular extension.

分布源的存在，主要是因为复杂环境下的目标反射、散射、衍射和折射导致大量信号路径存在，而又不可能对每条多径给予描述，从而造成目标空间位置在一定角度范围内连续分布，引起信号到达阵列天线的波前相干损失。

The dispersion relations for waves on liquid film surfaces were proved and thickness of liquid film was measured by laser diffraction.

利用激光衍射法验证了液体薄膜的色散关系，并应用于液体薄膜厚度的测量。

The products are characterized by scanning electron microscopy, X-ray diffraction and energy dispersive spectroscopy.

用X-射线衍射、扫描电子显微镜和能谱对产物进行表征。

The resulting materials were characterized by x-ray diffraction, Fourier transform infrared spectroscopy, Nuclear magnetic resonance and Photoluminescence. Those spectra reveal that by adding SiO2 to YAG:Ce precursor, the lattice constant decreases while vacancies are generate due to the co-dopant ions (Si4+) replaces in the place of Al3+ sites of YAG:Ce system. YAG:Ce phosphors with Y3+ dodecahedral site replaced by Ce3+ and diffused effectively as an activator, as a result the photoluminescence intensity increased about ~20-30%.

研究成果显示，掺杂SiO2之YAG：Ce萤光粉经过高温热处理后，由X光绕射、红外线吸收光谱仪以及核磁共振可以得知，当SiO2添加量增加时，YAG：Ce晶格常数会因为Si4+取代Al3+的四面体晶格位置而变小，同时产生将YAG：Ce之铝离子空位缺陷，使活化中心更有效地在YAG：Ce主体中扩散取代Y3+的十二面体晶格位置，提高其发光性质约20~35%。

It has been discovered that there is 2.2% dolomite in the sediments through the analysis of X-ray diffraction.

对样品所做的X-衍射矿物物相定量分析表明其中含有2.2%的白云石。

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。