本文是引用新的物理量后，建立了柴油发动机排气压力波气缸端新的边界方程序。
Equations of the boundary conditions at the end of the exhaust pipe have been rewritten after introducing new variables.
发动机压力比(epr)，进气压力与排气压力值的比，某些发动机以此作为设定推力的主要依据。
Engine pressure ratio (EPR), the ratio of inlet pressure over exhaust-let pressure measurements. The ratio is used as the primary parameter to set thrust on some engines.
汽车发动机的排气压力大，温度高，具有较高品位的热能，能开发利用。
With high exhaust pressure and high temperature, motor engines have relatively high-quality heat energy, which thus may be developed and applied.
汽车发动机的排气压力大，温度高，具有较高品位的热能，能开发利用。
With high exhaust pressure and high temperature, motor engines have relatively high-quality heat energy, which thus may be developed and applied.
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