With the variations of altitude, atmospheric pressure changes, resulting in corresponding changes of internal combustion engine performance.
随着海拔变化，大气状态随之变化，导致内燃机性能相应变化。
The performance and emission characteristic of internal-combustion engine is decided by the reciprocity of the intake flow, in-cylinder mix and combustion process.
内燃机的性能与排放特性主要由进气流动、缸内混合和燃烧过程间复杂的相互作用所决定。
The flow field uniformity inside the exhaust cleaner of internal combustion engine has very important effect on the use performance and service life of the exhaust cleaner.
内燃机排气净化器内的流场均匀性对净化器的使用性能及使用寿命具有非常重要的影响。
The performance of an exhaust muffler of internal combustion engine is related not only to the construction of itself, but also to the characters of the exhaust noise source.
内燃机排气消声器的实际消声性能既与消声器本身结构有关，又与排气噪声源性质有关。
A self learning control method is applied to optimize performance of internal combustion engine.
提出了一种可在内燃机电子控制中用于优化内燃机性能的自学习控制方法。
However, improving the internal combustion engine in this respect has proven to be extremely difficult without sacrificing performance.
然而，提高内燃机在这方面已被证明是非常困难的不牺牲性能。
A stead flow test that predicts the performance of the novel internal combustion engine with oval bore is presented.
本次稳流试验用来预测新颖的椭圆气缸往复式内燃机的性能。
The 3-d numerical methods are used to predict the acoustic attenuation performance and flow resistance characteristics of internal combustion engine exhaust silencers.
使用三维数值计算方法预测内燃机排气消声器的声学性能和阻力特性。
The 3-d numerical methods are used to predict the acoustic attenuation performance and flow resistance characteristics of internal combustion engine exhaust silencers.
使用三维数值计算方法预测内燃机排气消声器的声学性能和阻力特性。
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