同时，随着法规的逐渐严格，怎样在降低排放同时提高发动机的性能已经成为现在人们关心的最主要问题之一。
How to save energy and control the exhaust emissions while improving engine performance are the main topics people caring about.
该方法可以提高发动机的加速性能并满足加速过程中的各项约束条件。
By this method, the engine acceleration performance can be improved greatly and each constraint in the acceleration process is satisfied.
为提高发动机性能、减轻质量和降低生产成本，开发了一种新型的裂解连杆用钢。
In order to improve engine performance, reduce weight and production cost, a new kind of fragmentation connecting-rod steel is developed.
应用推荐