Converts a variable electrical control signal into a variable pneumatic output.
一个变量转换成一个变量气动电控信号输出。
As the fundament of variable electrical equipments, power supplies realize power changing and delivery.
电源设备用以实现电能变换和功率传递，是各种电子设备正常工作的基础。
Constant speed drive, a hydro-mechanical component for changing variable engine gearbox speed to constant speed to drive the electrical power.
恒速驱动装置，将发动机齿轮箱的可变转速转变为恒速以驱动电源的液压机械式部件。
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