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This paper dissertates the function of Virtual Reality Technology in the product development process, and discusses the advantage in building virtual reality design system with the PTC DIVISION Mockup software. The four key technology projects of building Virtual Reality Design system are explained simultaneously. In the virtual reality environment that is built with DIVISION Mockup Software, the...
The model of appropriate exploitation of mine ecological economics and its regulation is the theoretical foundation to achieve sustainable development of mine ecological economics. By studying the ecological carrying capability and ecological elastic capability and using the frame model of PSR (press-state-responde model), the dynamic evolvement of mine ecological economics under the fluence of Economic...
A simple fuel economy operating mode and a comprehensive fuel economy operating mode of tractor equipped with CVT are proposed in this paper. The former takes the minimum fuel consumption rate point in the whole engine operating range as the target, the throttle opening keeps constant, the gear ratio of CVT is adjusted by the controller which is a single parameter control system. The later takes the...
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