有关机械工程....？ nowadays, mechanical engineering embraces many hi-tech areas such as micro-machinery, robotics, new energy sources, aviation, and manufacture and packaging of computer chips. electronic control and information technologies are also integrated into mechanical systems so that intelligent machines (such as robots, camcorders, cd players and electronically controlled automobiles) can be produced. mechanical engineers are also concerned about indoor and outdoor environments to enhance the quality of life. they design thermal and mechanical systems for human comfort, power generation and energy conservation with minimum air, noise, and thermal pollution. they also design these systems to be more compact and at the lowest possible cost for global market competition. modern mechanical engineers use computer-aided design and computer-aided-manufacturing technologies extensively to design, build and test innovative solutions to "real world" problems. they use computers and other digital systems to control industrial processes. they bring electronic, materials, and mechanical science together with precision machining and packaging techniques to manufacture diverse types of products. robot arms are now common in the automotive industry and new, light weight, flexible robots are soon on the way. the development and application of advanced materials for various engineering products is another remarkable achievement of mechanical engineers in the 20th century. for example, advanced materials have made it possible to produce tiny computer chips with 8 gbyte of memory. also, advanced light weight and durable materials enable the design of transportation systems from space to earth and sea. from the above, it can be seen that the mechanical engineers of yesterday, with oily hands, surrounded by heavy machinery, are no longer in the modern work place of the mechanical engineering profession. the nature and scope of mechanical engineering have now expanded beyond all imagination. 查看更多
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