4-dimension force in Minkowski spacetime;
Minkowski时空中的四维力
The Covariant form of four-dimensional torque is studied, the expression of three-dimensional torque that meets relativistic demand is given, with the use of it, Some paradoxs of the torque are explained more satisfactorily.
研究四维力矩的协变式，给出满足相对论要求的三维力矩的表达式，并运用这一表达式对几个力矩佯谬进行了较满意的解释。
STUDY OF FLUILD UNIT 4D GEOLOGIC MODELING IN TANGJIAHE OIL FIELD,HUANGHUA DEPRESSION;
黄骅坳陷唐家河油田四维地质建模研究
Simulation of Dynamic Path Planning for UAV in 4D Space
四维空间中的无人机动态路径规划及仿真
In this text we used the method of volume integral equation base on tensor Green's function to study the forward of 4D transient electromagnetic response.
本文采用基于张量格林函数的体积分方程法进行四维模型瞬变电磁响应的正演研究,文章中首先说明了四维瞬变电磁法模拟的可行性及程序实现,然后分别设计了两个三维异常体模型(水藏、油藏),采用两种观测方式(激发与接收平行、激发与接收垂直)进行正演模拟计算,并对所得的二次总场的数据进行了分析。
THE DEFINITIONS OF SOME FOUR-DIMENSION MECHANICAL QUANTITIES AND THE RELATIONSHIPS WITH THREE-DIMENSION QUANTITIES;
几个四维力学量的定义及与之相应的普通三维量的关系
Research on 3-&4-Dimension Force/Torque Sensors with Parallel Structure;
三、四维并联结构力与力矩传感器研究
Three-dimensional hydrodynamic model of concrete tetrahedral frame revetments
四面体框架群三维水动力模型(英文)
Dynamical Analyses,Four-Dimensional Data Assimilation and Numerical Experiment for Typhoon Sea Surface Wind
台风海面风场的动力分析、四维同化及数值试验
The Mechanical Behavior of 4-step 3-D Braided Composites under Impact Tension;
四步法三维编织复合材料冲击拉伸力学性能
A New Linear Stress Hybrid Quadrilateral Finite Element and Its Three-dimensional Extension;
一个新型杂交应力四边形有限元及其三维推广
Four-dimension Analysis and Value-contributing Mechanism of Intellectual Resources Management;
智力资源管理四维分析与价值贡献机制研究
Investigation on the Mechanical Behavior of Three-Dimensional Four-Directional Braided Composites;
三维四向编织复合材料的力学性能研究
Four Dimensions of Innovative Abilities of Higher Education Institution Teachers and Its Cultivation;
高职院校教师创新能力的四个维度及其培养
Development of Piezoelectric Six-axis Force Sensor on Axis with Four-pivot
四支点压电式轴用六维力传感器的研制
Design of a novel four-dimensional fingertip force sensor
一种新型结构机器人的四维指力传感器设计
Construction and operation of backup communication system in Sichuan Electric Power Dispatching Center
四川电力调度备调通信系统的建设与运维
Four-Dimensional Generalized Symmetrical Formalism in Classical Physics and Quantum Mechanics and Mechanical Wave Theory;
经典物理和量子力学中的四维广义对称形式和力学波动论
A class of four-dimensional Lagrangian function;
一类四维Lagrangian函数
We can now use tetrahedron and hexahedron elements in three-dimensional stress analysis.
我们现在在三维应力分析中采用四面体单元和六面体单元。
Bifurcations of Double Homoclinic Loops in Four Dimensional Systems and Problems of Periodic Solutions in Population Dynamics;
四维系统中的双同宿环分支与种群动力学中的周期解问题
Asymptotic Homogenization Theory for Composite Material Effective Mechanics Property: CF Reinforced PTFE;
均匀化理论研究碳纤维改性聚四氟乙烯力学性能
Mechanical Property of Three-Dimesional Four-Directional Braided Composites with Cracks;
含裂纹的三维四向编织复合材料的力学性能研究