Thinking about the definition of virtual experimental 3D-model

Erecting accurately three-dimensional model plays a crucial role in the exploitation of virtual experimental. We can obtain more advantage in virtual experimental teaching with proper definition of three-dimensional model. It is necessary that take some factors into account for an excellent virtual experimental, such as character of learner, requiring of program and seeing effect so on. It expatiate thinking about the bound of figuring virtual experimental model accurately, and bring the principle about definition of virtual experiment.