The formulation for the composite pyramid element has been presented.
在分析组合网架结构主要受力特点的基础上提出了一种简化计算方案，建立了组合四角锥单元计算公式。
A novel traffic-based approach of quaternion(O,A,P,R) for failure measuring in transport network is put forward.
提出了一个基于业务的传送网四元组故障测度方法(O,A,P,R)。
We shall discuss quadruples, triples, trees, and indirect triples.
我们将讨论四元组，三元组，树和间接三元组。
generating code from quadruples
四元组生成目标代码
Dibit: A group of two bits .The four possible states of a dibit are 00,01,10,and 11.
变数元:两个数元的组合。它的四种组合情况是00，01，11。
General Solution to a System of Quaternion Matrix Equations
一类四元数体上线性矩阵方程组的解
Space time block code based on quaternion quasi-orthogonal design
基于四元素准正交设计的空时分组码
Units of four bits are sometimes referred to as nibbles.
有时将四位数字组成的单元叫做半字节。
Studies on Crytallization and Properties of Melt-spun Quaternary Al-based Alloys;
快速凝固四元铝基金金显微组织及性能的研究
Study on Curing System of Four-components HTPB Composite Propellants;
丁羟四组元复合固体推进剂固化体系研究
Investigation of the Solutions to a System of Quaternion Matrix Equations AX=B, XC=D
关于四元数矩阵方程组AX=B,XC=D解的研究
Theoretical Study on the Sandwich-like Compounds Containing the Planar Tetracoordinate Carbon Unit CAl_2Si_2
基于平面四配位碳单元CAl_2Si_2夹心组装的理论研究
Organic Matter Enrichment of Dalong Formation in Guangyuan Area of the Sichuan Basin
四川盆地广元地区大隆组有机质富集规律
Business extention together with advertisement, personal selling and public relations constitute promotion mix.
营业推广与广告、人员推销和公共关系是促销组合策略的四大元素。
Investigation on the New Borate Ester Bonding Agents for the High Energy Four Groups Hydroxy-Terminated Polybutadiene Propellant;
高能丁羟四组元复合固体推进剂用新型硼酸酯键合剂研究
Molecular Epidemiological Studies on Human Papillomavirus in Cervical Cancer Isolated from Guangyuan;
四川广元宫颈癌患者组织人乳头瘤病毒的分子流行病学调查
Effect of Composition and Process on the Properties of PZSN Quaternary Ceramics;
组成和工艺条件对四元系PZSN陶瓷材料性能的影响
The Minimal Norm and the Least Square Solution to a System of Linear Equations in the Quaternion Field;
四元数体上右线性方程组的极小范数最小二乘解
The Phase Relations of the Zn-Bi-Fe-Ni Quaternary System and the Effect of Bi on the Microstructure and the Corrosion Resistance of the Galvanized Coating
Zn-Bi-Fe-Ni四元系相关系的测定及Bi对镀层组织和耐蚀性的影响
Mixed Finite Volume Element Method for 4-Order Semi-Linear Parabolic Equations and Its Numerical Simulation
四阶半线性抛物型方程（组）的混合体积元方法及其数值模拟