Hopefully most of you know that the electricfield is a vector field that basically tells you what kind offorce will be exerted on a charged particle that you put in it.
希望大多数人都知道电场是向量场，电场描述了，对场中的带电小颗粒的力的作用。
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There are three sections of damping force, and they are background damping forceof a fluid viscosity, electric damping forceof applied electricfield and pressure of gas.
An intense femtosecond laser pulse can provide an electricfield strength which exceeds the electricfieldforceof valance electrons that holds the electrons to their ionic cores.