With the field model, the electrostatic field distribution were observed and the magnitude of the charged quantity is determined by electron holography.
采用这个模型，能用电子全息法观测由该点电荷所形成的静电场分布及荷电量的大小。
2
The studying results indicate that the magnitude and distribution of residual stress are related to the heat input created by welding process and to the cross section geometry.