This paper discusses the proof of the point line combination problem by applying desargues theorem,pappus theorem,central projection method and harmonic property of the complete quadrangle.
结合实例探讨了利用Desargues定理及其逆定理证明点线结合问题,利用Pappus定理证明点线结合问题,利用中心投影把直线投射到无穷远证明点线结合问题,利用完全四点形的调和性质证明点线结合问题。
A Teaching Method of Computer Fundamental Course Combining Linear and Non-linear Teaching Methodology
结合线性与非线性模式的计算机基础课程教学
The two lines are united at an angle of 45°.
两线以45度角结合。
Research on QoS Guarantee in 802.11-based Wireless-cum-wired Network;
基于802.11无线—有线结合网络的QoS研究
Knot strength investigation of braided glass filament fiber sewing threads
编织结构玻璃长丝缝合线的打结强度
A length of yarn, cord, or thread, especially a strong silk thread used mainly to bind the edges of buttonholes.
丝线一段毛线、粗线或丝线,尤指主要用来缝合钮扣孔的结实丝线
Synthesis and Characterization of Polymers with Well-defined Non-linear Topological Structure by Living Anionic Polymerization
非线形拓扑结构聚合物的合成与表征
Multi-level threading is a hybrid of user-level and process-based threading.
多级线程是用户空间和基于进程线程的结合。
Combining Calculation with Drawing to Define the Foot Position of Common Perpendicular of Lines on Different Planes;
算画结合,确定两异面直线公垂线的垂足位置
Construction Technology of Steel-concrete Continuous Beam in Railway Passenger Line
铁路客运专线钢-混连续结合梁(双线)施工技术
Coupling devices for power line carrier systems
GB/T7329-1998电力线载波结合设备
Premises Distribution System
建筑物结构化综合布线系统
They are trying to form a united front.
他们正试图结成一个联合阵线。
The Experimental Investigation on Nonlinear Dynamics of Cable-beam Structure;
索—梁组合结构非线性动力学实验研究
The Structure and Behavior of Filament/Staple Composite Yarns;
长丝/短纤维复合纱线的结构与性能
Study on the Composite Plating Technology of Fixed Diamond Wire;
固结金刚石线锯的复合电镀工艺研究
The Study in City-wide Green Space System Planning about Points, Lines and Faces;
市域绿地系统规划点线面相结合研究
Research of Fluid-Thermal-Structural Coupling for Active Phased Array Antenna;
有源相控阵天线流—热—结构耦合研究
A Probe into the Proof of the Point Line Combination Problem with Projective Transformation Method;
探讨利用射影变换证明点线结合问题