Each piston fires at a different time, determined by the engine firing order.

每隔活塞按不同的点火顺序依次点火。

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Fuel injectors pulse to follow engine firing order, in accordance with engine demand, on a tuned intake manifold.

按照引擎的要求，燃料注入器在一个受到调整的进流管上进行脉动注入，以跟随引擎的点火顺序。

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The numerical simulation results show that the equivalent stress intensity factors KIeq relates with the engine firing order, their peak value rises while the crack depth increases.

计算结果表明，等效应力强度因子与发动机点火顺序密切相关，其峰值随裂纹深度的增加而增大。

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