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1 开发双弹簧喷油器的必要性 柴油机的燃油经济性、动力性和排放指标是互相矛盾、互相制约的,要想同时使各项指标都得到改善几乎是不可能的,只能采取折衷的方案。从放热率的观点来研究柴油机
The need to develop double-spring injectors Diesel fuel economy, power and emission targets are contradictory and mutually restrictive, if at the same time make all the indicators have been improved is almost impossible, only to take the trade-off Program. Diesel engines are studied from the viewpoint of heat release rate