| 更快、更顺畅的变速器 |
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| 摘 要： | 随着排放法规的日趋严格，汽车制造商为降低排放所做的努力已不再局限于改善燃烧过程和后期处理。许多公司，认为，现代发动机技术已经发展到这样一个阶段：与投入巨额开发成本相比，技术进步带来的收效却很小。
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| 关 键 词： | 变速器 汽车制造商 发动机技术 排放法规 后期处理 燃烧过程 开发成本 技术进步 |
Faster, smoother transmissions |
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| Abstract: | With tightening emissions regulations, carmakers are not just confining their efforts to improving combustion and after-treatment. Many are finding that modern engines are so advanced that the benefits of some engine technologies are small compared to the huge development costs involved. |
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