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- Yes, if we write them as rank-2 symmetric tensor fields, they satisfied Einstein equation.However, it is not clear how big a deal this is, since diffeomorphism is put in before hand. 在近似下,弦论可以得出广义相对论,从而一切证实广义相对论的实验都是对弦论的支持。
- The more general case of a tensor field is similar but more complicated. 较普遍的张量场情况大致相似,但是更为复杂。
- Based on the general solution of a kind of linear tensorial equations, the invariant representation of the spin of a symmetric tensor is obtained. 基于对一类线性张量方程的一般解法,导出了任一对称张量所对应的自旋张量的绝对表示。
- completely skew symmetric tensor 完全(斜)对称张量
- Secondly, the diffusion tensor field of the gray image at each pixel is calculated and applied to construct weighted gradient field, thus to create a divergence-based colorization equation. 然后计算每个像素的扩散张量,并利用这些扩散张量构造加权梯度场,从而导出基于散度的图像彩色化方程;
- A nonlinear tensor-valued weighted directional-distance filtering method is proposed for regularizing the diffusion tensor field produced by diffusion tensor magnetic resonance imaging. 为了正则化扩散张量磁共振成像所产生的扩散张量场,提出了一种非线性张量值加权方向-距离滤波方法。
- tensor field of complex structure 张量场
- alternating covariant tensor field 共变交错张量场
- The field artillery pounded away at the for tress. 野战炮兵连续炮击那座要塞。
- The crowd cheered as the teams entered the field. 球队入场时观众们为之欢呼。
- On the map the drains of each field are laid sown. 地图上标有每一块地的排水沟。
- Right-handed batters usually hit to left field. 右撇子击球手把球打到左外野。
- symmetric tensor 对称张量
- The runaway horse was cornered in a field. 那匹跑掉的马在田地里被圈住了。
- skew symmetric tensor 斜对称张量
- Tent is used by camper and by soldier in the field. 露营的人和战地的士兵用帐篷。
- The children had a field day with their new toys. 孩子们玩新玩具玩得十分开心。
- An oil well blew out in the oil field. 油田里有一口油井发生井喷。
- He is an adventurer in financial field. 他是金融领域的投机者。
- inverse symmetric tensor 反对称张量