The cubie idempotent preserving injection of 2×2 matrix algebras over fields;
关于2×2矩阵代数保立方幂等的单射
It expounds the calculting formulas of single mapping and full mapping and explains their application in solving the problem of permutations and combinations.
本文用映射的观点对排列组合问题进行了分析与思考 ,论述了单射个数与满射个数的计算公式及其在一些排列组合问题中的应
The compound(2) was characterized by elemental analysis,1H NMR,13C NMR apectra and X-ray diffraction patterns.
由二(三甲基硅基)甲基锂(1)与二氯苯基膦经一步反应合成了二(三甲基硅基)甲基-氯代-苯基膦化合物(2),并通过1H NMR、13C NMR和X-射线单晶衍射等手段进行了表征,结果表明,化合物(2)属三斜晶系,Pī空间群,a=8。
Compound(2) was characterized by elemental analysis,~1H NMR and ()~(13)C NMR apectra,X-ray diffraction patterns.
由二 (三甲基硅基 )甲基锂 (1)与一氯二苯基膦经一步反应合成了二 (三甲基硅基 ) -二苯基膦基 -甲烷化合物(2 ) ,并通过 1 H NMR、1 3C NMR、元素分析和 X-射线单晶衍射等手段进行了表征 ,结果表明 ,化合物 (2 )属三斜晶系 ,P- 1空间群 ,a=8。
A single slit diffraction approach for measuring metal linear expansion coefficient;
利用单缝衍射测金属材料的线膨胀系数
Measuring the expansion coefficient of metal using single slit diffraction;
单缝衍射测量金属膨胀系数
Extended experiment on single slit diffraction instrument;
用激光单缝衍射实验仪做扩展实验
Di-ffraction bata of 3739 independent reflections were collected on Nicolet XRD R3 fourcircle diffractometer using Mokα radiation.
3739个独立衍射数据由四圆单晶衍射仪用低温技术收集。
Design and Development of the Control System of RASA-5RP X-ray Diffractometer;
四圆单晶衍射仪控制系统的研制与开发
single crystal X-ray diffractometer
单晶体x射线衍射仪
automatic single crystal neutron diffractometer
自动单晶中子衍射仪
SINGLE CRYSTAL X-RAY DIFFRACTION CHARACTERISTICS OF MODULATED MINERAL CRYSTALS
调制结构矿物晶体的单晶X射线衍射特征
A XRD Method to Measure Orientation of Single Crystal Superalloys
X射线衍射法测量单晶高温合金的取向
Technology of Soft X-Ray Diffraction and Sulfur Single-wavelength Anomalous Diffraction in Protein Crystallography
长波长X射线衍射技术与蛋白质晶体中硫的单波长反常散射研究
X-ray Diffractive analysis of Crystal Structure ?
X-射线衍射晶体分析
Applications of Polycrystal X-ray Diffraction
多晶 X射线衍射应用
neutron powder crystal diffraction patter
粉末晶体中子衍射花样
Study on Semiconductor by X-Ray Double Crystal Diffraction;
半导体超晶格的X射线双晶衍射研究
X-ray crystallographic analysis and revision of NMR spectral assignments for rhetsinine
瑞特西宁的单晶X-衍射及其~1H NMR、~(13)C NMR数据的全归属
Study on the Hydrolysis Distribution of Ferric Saline by Infrared Spectrophotometry and Single Crystal X-Ray Diffraction Method
红外光谱法及单晶X衍射法研究Fe(Ⅲ)水解形态分布
Neutron diffraction study of stress and lattice mismatch induced by thermo-mechanical fatigue in single crystal superalloys
中子衍射法研究单晶镍基高温合金热机械疲劳引起的应力和晶格错配
Methods Three-dimensional determination for four natural organic compound samples by using single crystal X-ray diffraction.
方法应用单晶X射线衍射分析方法对4个天然有机化合物样品进行三维结构测定。
Design of refractive/diffractive spherocylindrical phakic intraocular lens
折射/衍射球柱有晶体眼人工晶体的设计
The Probing about the Fresnel s Diffraction and Fraunhofer Diffaction of the Single Slit Source;
单缝的菲涅耳衍射与夫琅和费衍射的探讨
Visual Performance in Glaucoma with Cataract after Implantation of Multifocal AcrySof ReSTOR Diffractive Intraocular Lens
衍射型多焦点与单焦点人工晶状体在青光眼合并白内障病例中的应用