1. the application range of the invention is shown in (of) technology.;this invention is a power of their own on the use of alternative energy sources of motivation for the purpose.;2. the (research) is to solve the technical issue.;his energy on the strength of the internal conflict to go out to work, in order to show the effect of force to thrust themselves.;3. the solution of the (development) of importance.;as the resistance force between the use of the resistance force of the external resistance force is large, the effect of the resistance force to eliminate.;4. the invention uses the (design) is the most important.;the angel with the ability and their motivation to obtain the minimum ground friction and air resistance in the momentum effect.
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