... 曲率角 angle of curvature 减角 angle of decrement 偏转角，绕曲角 angle of deflection ...
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The results show that at the same fuel delivery advance angle, engine speed and load, the line peak pressure and rate of pressure increment and decrement of DME are lower than that of diesel fuel.
试验结果表明：在供油提前角、转速和负荷相同的情况下，燃用二甲醚时油管泵端和嘴端压力的上升和下降速度、压力峰值都比燃用柴油时低；
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