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美国的石油公司和汽车制造厂正在进行一个花费数百万美元的合作研究规划,其目的是更好掌握将来的发动机燃料和汽车引擎,以决定双方如何能够为国家90年代的“净化空气”做出最大的贡献.
The U.S. oil companies and automakers are conducting a multi-million dollar collaborative research project aimed at getting a better grasp of the future of engine fuels and car engines to determine how the two sides can work for the nation’s 90s “clean air” "Make the greatest contribution.