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.
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。
For improve thrust loading and decrease fuel consume of the engine, propulsive system of the future demand the compressor in possession of higher pressure ratio and more efficiency.
未来飞机推进系统要求压气机的压比和效率均大大高于目前的使用水平，以提高发动机推重比，减小燃油消耗。
The effects of combustion chamber pressure and mixture ratio on engine performance were analyzed based on simulation.
并根据结果分析了燃烧室压强和混合比对发动机性能的影响。
When properly increases hydrogen blending ratio, the maximum cylinder pressure and engine torque are increased. However, large hydrogen blending ratio will decrease engine power.
适当增加模拟沼气发动机的掺氢比例，发动机缸内最高压力和最大转矩升高，过多的掺氢比例会降低发动机的动力性。
The variable geometry turbocharger(VGT) is used to improve the performance of high pressure-ratio diesel engine, particularly at low load.
采用可变几何涡轮增压器（VGT）是改善增压柴油机低工况的有效方法。
A new index is proposed to evaluate performance of the air-powered engine-the ratio of the mean effective pressure and the average pressure in the engine cylinder.
提出一个评价气动发动机性能的新指标——气动发动机平均有效压力和缸内平均压力的比值。
The proposal of increasingcompression ratio without essential increase in temp. and pressure makes it possible to raise the efficiency of internal combustion engine.
提出了在几乎不增大温度和压强的前提下，增大压缩比，使提高内燃机效率成为可能。
The proposal of increasingcompression ratio without essential increase in temp. and pressure makes it possible to raise the efficiency of internal combustion engine.
提出了在几乎不增大温度和压强的前提下，增大压缩比，使提高内燃机效率成为可能。
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