Using the electromagnetic wave equation in gravitational field, we give a general method of calculating the deflection of light by gravitational field under the condition of weak field approximation. 利用引力场中电磁波方程,在弱场(WF)近似下给出了一般的计算光线偏转角度的方法。
But, at present, curriculum policy in counties is still a weak field in the study of our countrys curriculum policy. 就目前来说,县域课程政策却是我国课程政策研究的薄弱领域。
Carbonate of lake facies is a weak field of sedimentological research both at home and abroad. 研究发现湖相鲕粒灰岩是一种良好的储层,其孔隙中含大量石油。
Using the semiclassical method of a two-level electron interaction with field under the assumptions of free-electron and weak field. 使用量子光学中两能级原子与电磁场相互作用的半经典方法,得到了在自由电子和弱场(WF)假设下两能级电子与场相互作用的波函数表达式。
Is because of the weak field approximation. 得到的三个光场态方程是由于弱场(WF)近似所造成的。