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4结果及讨论图5给出喷射始点为上止点时喷油器喷嘴的喷射速率曲线。至于其它的喷射始点，则曲线形状相同，只是根据喷射始点的滞后或提前分别向右或庄移位。图5所示的结果表明：根据咳喘流通截面积的不同（225×8和260×6的流通面积基本相同，260×8和300×6的流通截面积基本相
4 Results and Discussion Figure 5 shows the injection rate at the top dead center injector nozzle injection rate curve. As for the other starting point of injection, the curves are the same in shape, and are shifted to the right or the right according to the lag or advance of the starting point of the injection. According to the results shown in Fig. 5, according to the different cross-sectional area of cough and asthma (the flow area of 225 × 8 and 260 × 6 is basically the same, the flow cross-sectional area of 260 × 8 and 300 × 6 is basically the same