Discussion of two-dimensional projective correspondence and perspective correspondence;
二维射影对应与透视对应的探讨
As two-dimensional projective correspondence of pencil of planes derives from one-dimension projective correspondence of pencil of lines in space field,this paper discusses a new method about how to form quadratic straight surface and the relational expression between the two projective correspondences of pencil of planes.
由平面场的一维线束射影对应衍生出空间场的二维面束射影对应,研究了直纹二阶曲面射影生成新方法。
To decide whether a projective correspondence is a perspective correspondence plays a very important role in projective geometry.
射影几何中的透视对应是射影对应的一种特殊而又基本的对应,要判断射影对应是否为透视对应,在射影几何中处于十分重要的地位,本文主要用代数的方法给出了同类不重叠的一维、二维基本形的射影对应为透视对应的条件。
The relations plane projective correspondence and perspective correspondence;
二维射影对应与透视对应的关系
Twoformation methods are studied: the inverse transformation of conics and the intersection oftwo like-projective pencil of circles.
提出并研究了它的2种构成方法──圆锥曲线的反演变换法和类射影对应圆束相交法；给出了类射影对应圆束的定义和2种构成法的实例及计算机图形。
The Equivalence of Definitions of Projective Correspondences in One-dimensional Basic Figures;
一维基本形间射影对应定义的等价性
adiatively active gas
影响辐射效应气体; 对辐射产生效应的气体
Influence of RNAi on p21 Radiobiological Effects;
RNA干扰对p21电离辐射生物效应的影响
Influence of RNAi on Survivin Radiobiological Effects;
RNA干扰对survivin电离辐射生物效应的影响
Deducing the Theorems of 3-Dimension Projective by Applying the Principle of Duality;
应用对偶原理导出三维射影几何定理
Effect of radiation damping on seismic response of structures
地基辐射阻尼对结构地震响应的影响
Influence of Dose Rate on Radiation Response of PMOSFET Dosimeter
剂量率对PMOS剂量计辐射响应的影响
Influence of constraints on the stress and deformation of mirror
约束条件对反射镜应力与变形的影响
Role of DNA damage repair capacity in radiation induced adaptive response
DNA损伤修复能力对辐射适应性反应的影响
health effects of radio-frequency radiation
射频辐射对健康的影响
Influence of Interface Reflection on Positioning Performance and Restraining Technology
界面反射对定位系统性能影响及应对策略研究
The Biological Effect of Sensitizing Agent on Sunflower by Laser Irradiating;
辐射敏化剂对激光照射向日葵生物学效应的影响
Effects of rocuronium injection rates on injection pain of recuronium in children
不同静脉注射速度对小儿罗库溴铵注射痛反应的影响
Depth-dose Distribution of Secondary Effects in Photon Transport Process
光子辐射输运中次级效应对辐射剂量深度分布的影响
Radiobiological impacts of protraction fraction time on human nasopharyngeal carcinoma cell line CNE1
延长分次照射时间对人鼻咽癌细胞CNE1放射生物效应的影响
Influence of Materials on Residual Stress in Sandwich Injection Molding Process
材料种类对夹芯注射制品残余应力的影响
Influence of Injection Molding Conditions on Residual Stress in Sandwich Parts
工艺条件对夹芯注射制品残余应力的影响
The Effects of UVB Radiation on Physiological Properties of Saccharomyces Cerevisiae and Application;
UVB照射对酵母菌生理性能的影响与应用研究