The ACS 5000 variable speed drive system enables Boeing to run the fan in adjustable speed mode or at constant speed, depending on the protocols and parameters of each test.
ACS 5000变速驱动系统使得波音公司可以根据每个测试的规程和参数，自由设定可调速度模式或者恒速模式。
Structure parameters of its variable intake system, such as diameter and length of intake manifold, switching speed of control valve switch, etc. , are optimized.
对该汽油机采用的可变进气系统的歧管直径和长度、控制阀开关的切换转速等结构参数进行了优化设计。
An experimental system of constant volume combustion bomb with variable turbulence parameters is designed and carried out for the fundamental research of premixed turbulent combustion.
设计了一种可变湍流参数定容燃烧弹试验装置，用于预混湍流燃烧的基础研究。
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