查询词典 alpha ray

In this paper, the scanning electron microscopy, energy dispersive X-ray analysis, X-ray diffraction, optical microscopy and other means of detection at different temperatures of the micro-structural characteristics of steel slag are described, analyzed the microstructure and autoclave pulverization of steel slag relationship.

本文通过扫描电镜和X射线能谱分析，并结合X射线衍射，光学显微镜等检测手段对不同温度下钢渣的微观结构特征进行了描述，分析了微观结构和钢渣蒸压粉化性能之间的关系。

Two representative compounds have been determined by X-ray crystallography. The best ratio of reactants, the adequate reaction temperature and solvent have been found by contrast experiments.4. The better photoreaction conditions and irridation times have been confirmed through the different photoreaction results. It is the first time that fifty quinazoline derivatives with biological activity and four photooxidation products with urea functional groups have been obtained by photochemistry method. Two representative compounds, quinazoline derivatives and photooxidation products, have been determined by X-ray crystallography, respectively.

通过实验对比我们找到了较佳的反应物的投料比、反应温度和反应所用的溶剂。4、根据不同条件下的光反应结果，确定了硫脲衍生物的相对较好的光反应条件和光照时间，首次利用光化学手段成功得到50个具有生物活性的喹唑啉衍生物和4个具有脲基官能团的光氧化的产物，测定了两个具有代表性的喹唑啉和光氧化的产物的晶体结构。

Since all γ-ray AGNs have strong radio emission, the relationship between γ-ray and radio emission is worthy to study.

由于所有的γ-ray AGNs都具有强的射电辐射，所以人们一直在努力研究γ-ray辐射和射电辐射之间的联系。

As the modern astronomical observational technique with the highest resolution, VLBI can provide key contribution to the study of relativistic jets structure, superluminal motion and bending jet of γ-ray AGNs. It is helpful to discover the relationship between γ-ray and radio emission of them.

VLBI技术是现代天文观测中能获得最高分辨本领的观测手段，利用VLBI技术对γ-ray AGNs的相对论射电喷流结构、视超光速运动和喷流的弯曲进行研究，将有助于我们探索该类源的γ-ray和射电辐射的关系。

Because of the excellent radiolucent of carbon materials in the X-ray, the carbon implant or fixation frame can be evaluated easily by clinical X-ray photography and CT scan techniques that are helpful for patients.

与传统金属和高分子材料相比，碳材料在生物相容性、强度、重量、稳定性、加工性、实际操作上具有突出的优势。

This paper consults the key technology in the radon measurement device in the national and international and we thinks over the characteristic of α-ray which emit by radon and its daughter, so that decides to use the α-ray spectrum to measure radon.

论文从测量氡及其子体放射出的α射线入手，瞄准国内外测氡装置关键技术发展趋势，结合氡及其子体α能谱测量特点，采用α能谱测氡的途径来完成这一工作。

Objective To study the X-ray findings and evaluate the value of X-ray in diagnosis of stress fracture of the pubic ramus.

目的 探讨耻骨支应力性骨折的X线表现及其诊断价值。

This company specializes in the production of x-ray protection staffs domestically with largest scale, rich experience and advanced tech. This company covers an area of 8,000 m2 . The series of supper soft interposition protection take the place of exported products."Intervention Protection Gloves" developed with Ray Protection Products Quality Testing Center of the Ministry of Sanitation fill in the domestic blank.

工厂占地面积8000平方米，是国内生产X射线防护用品规模最大、经验丰富、技术先进的专业公司，生产的超柔软型介入防护系列产品替代了进口产品，与卫生部射线防护器材质量检测中心共同研制出的"介入放射防护手套"填补了国内空白。

Then, the notion of ordered target triangle was defined. It quickly found ordered target triangles and generated the non-ray Voronoi diagram. Considering the characteristics of convex hull, a ray Voronoi diagram was generated by three infinite points.

然后又定义了有序目标三角形的概念，该算法能迅速查找点的有序目标三角形，生成无射线的Voronoi图；考虑凸壳上点的特性，借助三个无穷点生成带射线的Voronoi图。

A ray flower or the corolla of a ray flower.

金鱼草的花冠是二唇形的。

This paper designs the communication system of radio telescope FAST.

针对500m口径球面射电望远镜FAST分布式控制系统的特点完成了其通信系统的设计。

Political sheep's step-by-step a large number of fossils unearthed in the county soil Ma Ali after rural village in the middle of sallow pelitic siltstone.

步氏和政羊化石大量出土于广河县阿力麻土乡后山村，产于灰黄色泥质粉砂岩中。