英国的罗尔斯·洛伊斯公司正在制订一项计划,其目标是开发出用以制造先进涡轮发动机的非金属材料,英国的多所大学和企业将参加这方面的研究工作。据罗尔斯·洛伊斯公司预测,下一世纪所用的军用航空发动机的推力必须是自身重量的20倍,而目前的发动机推力仅为重量的8倍。另一方面,未来的发动机在做功 The Rolls-Royce Company of the United Kingdom is developing a plan whose goal is to develop non-metallic materials for the manufacture of advanced turbine engines. A number of UK universities and companies will participate in this research work. According to Rolls-Royce, the thrust of the military aviation engine used in the next century must be 20 times its own weight, and the current thrust of the engine is only 8 times the weight. On the other hand, the future engine is doing work