Because the problem is different. So how to model. Research is not the same as all I will have to increase the number of work to complete. The model will be used to create and debug further.
Because of a problem with a different model, so it is not the same as all the research they need to increase the flow of working conditions, due to be introduced in the model creation and solve the problem.
due to a problem with a different model, so how was it is not the same as research because all will have to be added to all conditions of the work, it will be used to create the model and solve the problem.