pressure ratio [航] 增压比 ; [物] 压缩比
critical pressure ratio [流] 临界压力比
pressure ratio regulating valve 压力比例调节阀 ; 压力比例调治阀 ; 压力比例调理阀 ; 压力比例
differential pressure ratio 差压比 ; 压差比
engine pressure ratio 发动机压力比 ; 发动机压缩比 ; 发动机压比 ; 推力比
total pressure ratio [力] 全压力比 ; 全压比
exhaust pressure ratio 排气压力比 ; 排汽压比
overall pressure ratio 总压比 ; 总压力比 ; 总增压比 ; 总压力比压缩机的输气压力与其进气压力之比值
pressure ratio control 压力比率控制
compressor pressure ratio 压气机增压比 ; 压缩机压力比 ; 压缩机增压比 ; 增压比
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。
The thrust reverser efficiency declines as the increase of the pressure ratio.
反推效率随着压比的增大而降低。
The influence of blade number, blade thickness, location of splitter blades and tip clearance on mass flow, pressure ratio and efficiency is showed.
讨论了改变叶片数目，增加叶片厚度，调整分流叶片周向位置以及增加间隙高度等对离心叶轮流量、压比和效率等总体性能的影响。
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