manual gain control circuit 人工增益控制电路
manual volume control circuit 人工音量控制电路
manual frequency control circuit 手动频率控制电路
The circuit control methods of pre heating system on diesel engine are introduced and the shortage of manual pre heating methods and the advantages of automatic pre heater are expounded in this paper.
介绍柴油发动机预热系统的电路控制方式，阐述了手动预热方式的不足和自动预热器的优异性能。
This paper introduces the connection of speed servo adjusting unit and the throttle, simplifies the control circuit of the manual throttle and offers two practical methods of speed testing.
介绍伺服调速及油门机构的连接，简化手油门控制电路，给出两种实用的测速方法；
The circuit for linearization can be applied in the accurate temperature program-control or fixed-point control after it is matched with an electric or manual resistance box.
线性化所用的电路与电控的或手拨的数字电阻箱匹配之后，可用于程序的或定点的精密温度控制。
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