The outstanding features of this plan lie in the programmable modulate mode, modulate rate, IF rate and so on.
该方案的显著特点是：调制方式、调制速率、中频频率皆可编程设置。
A pressure controller is employed to modulate speed of regulating pressure fan in a PID control mode.
利用一个压力控制器，采用PID控制方法对调压风机进行变频控制。
Conveyer's speed may dispose the control mode which the constant speed or may modulate velocity.
输送机的速度可配置成定速或可调速的控制方式。
Conveyer's speed may dispose the control mode which the constant speed or may modulate velocity.
输送机的速度可配置成定速或可调速的控制方式。
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