This pape has discussed the definitions of Four-dimension Space, Four-dimension Velocity,Four-dimension Momentum,Four-dimension Force.
文章介绍了四维空间矢量、四维速度矢量、四维动量、四维力矢量的定义 ,讨论了它们的特殊洛伦兹变换的矩阵形式以及它们与普通三维量之间的的关系。
The four-dimensional momentum current density tensor of electromagnetic field is defined.
定义了电磁场的四维动量流密度张量,并将电磁能量转化和守恒定律及动量转化和守恒定律写成了四维协变形式。
The Four Dimensional Tensor Expression of Maxwwll's Equations and Its Covariance
Maxwell方程的四维张量形式及其协变性
The energy density of the4- dimensional spacetime is supposed to be dominated by incoherent radiation and the energy-momentum tensor of the internal subspace is a step function.
我们假定四维时空的能量密度是以辐射为主的,而内禀子空间的能动张量是一个阶跃函数。
three-dimensional quadrupole mass analyzer
三维四极质量分析器
The fourth-rank tensors contain the compliance and stiffness constants.
四秩张量包含柔量常数和刚度常数。
Homological Dimension and Tensor Identity of Representations of Quantum Algebras;
量子代数表示的同调维数及张量等式
Assay of four vitamins in siweita capsule
四维他胶囊中4种维生素的含量测定
A Discussion on four Dimensional Divergence of Four Vector of Entrophy of Ideal Fluid According to Energy-Momentum Tensor T~(ab);
从能量动量张量T~(ab)讨论熵四矢的散度
The elastic moduli Eijlm represents a tensor of the fourth order.
弹性模数Eijlm表示一个四阶张量。
Three Dimensional Cartesian Representation of Gravity Vector and Gravity Tensor
引力向量与引力张量的三维笛卡儿坐标表示式
She had no time to look about, and bent anxiously to her task.
她没有时间四面打量，埋头紧张地干着她那份活。
Determination of Vitamin B1,Vitamin B2 in Four Vitamin Glucose Calcium Particles for Children by HPLC;
HPLC法测定小儿四维葡钙颗粒中维生素B1、维生素B2的含量
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
Study of Cerebral White Matter Fiber by Using MR Diffusion Tensor Imaging
大脑白质纤维磁共振弥散张量成像研究
Diffusion Tensor MR Imaing of the White Matter Fiber Tracts of the Brainstem
脑干白质纤维束磁共振扩散张量成像研究
Diffusion-Tensor MRI Study of The Normal Human White Matter Structure
正常人脑白质纤维结构的扩散张量成像研究
The Symmetry Conservation Tensor and Euler Angles of the Isotropic Three - dimensional Harmonic Oscillator
三维各向同性谐振子的对称守恒张量与欧勒角
Study of Cerebral White Matter Fiber in Children by Using MR Diffusion Tensor Imaging;
儿童大脑白质纤维磁共振弥散张量成像的研究
The Reconstruction Algorithm of Neural Fibers in the Brain White Matter Based on Diffusion Tensor;
基于扩散张量的脑白质内神经纤维的重建算法