| 1. | A new exact solution for vacuum einstein equations 场方程的一个新的严格解 |
| 2. | Equations of gravitational field 引力场方程 |
| 3. | We will discuss a new theory of gravitation , in which the field equation of gravitation is similar to maxwell equations 它的引力场方程与电磁理论的麦克斯韦方程十分相似。 |
| 4. | Beer ' s law is the simple solution to the more general description of maxwell ' s far - field equations describing the interaction of light with matter 比尔定律是对描述光与物质的相互关系的麦克斯韦远场方程的简化描述。 |
| 5. | Applying the distance approximation to the expression already obtained for the required phase difference between two radiating elements yield equation ( 7 - 1 ) 在已经得到的两个辐射单元所需相位差的场方程( 7 - 1 )中应用距离近似。 |
| 6. | Firtly , the laser envelope equation and the walefeild equation are derived from maxwell ' s equations and the hydrodynamic equations for the relativistic cold electron fluid 首先从maxwell方程组出发,推导出激光传输方程和尾波场方程。 |
| 7. | First , we give a brief review of instanton theory of 1 + 1 dimension . then we obtain the instantons in 4 - field model of 2 + 1 dimension 文章首先回顾了1 + 1维~ 4和sine - gordon场方程静态瞬子的相关理论,讨论了静态瞬子的能量密度、及其稳定性。 |
| 8. | The main results , obtained in this dissertation , may be summarized as follows : 1 . the identification problem of thermal parameters in the paleotempture field equation is reported 本文取得的主要结果可概括如下1 、研究古地温度场方程中的一些性能参数的识别问题。 |
| 9. | As mentioned in above , the boundary condition of ridge waveguide is quite complex , so to solve the field equations directly is very tedious and complicate 鉴于脊波导的广泛使用,本课题的研究很有实际意义。脊波导的边界条件比较复杂,直接求解场方程非常冗长、繁琐。 |
| 10. | On the basis of reviewing kaluza - klein theory , this dissertation emphasizes on discussing a five - dimensional ( 5d ) time - dependent and spherically symmetric exact solution presented by liu and wesson in 2001 本文在回顾kaluza - klein理论的基础上,重点讨论了由liu和wesson提出的一个5维含时的球对称引力场方程的严格解。 |