MTF is the primary parameter used for system design, analysis, and specifications.
MTF是用于系统设计、分析和规范的重要参数。
Static transmission error of helical gear pair is a primary parameter to evaluate the dynamic property of the gear pair.
齿轮副静态传递误差是衡量齿轮副动态性能的一个主要参数。
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。
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