Most of speed controllers of main engine in ship use PID control method.

船舶主机的调速器主要采用比例积分微分(PID)控制规律。

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Phase control operations in light dimmers, motor speed controllers, and similar.

在调光器的相位控制操作，电机速度控制器，和类似的应用。

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Special design vacuum sizing tank can ensure the stability of size and roundness, Speed controllers are used in extruder, haul-off to offer stability and precision.

特殊设计的真空定径箱，可以确保稳定的直径尺寸和圆整度，使用速度控制系统，使牵引速度稳定。

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The aircraft's transponder, which identifies the plane and relays details such as altitude and speed to controllers, stopped transmitting.

CNN: Pilot spots large object off Reunion Island

Aircraft equipped with ADS-B are able to automatically send highly precise data, such as aircraft positioning and speed, to air traffic controllers every second.

BBC: The key to preventing lost planes

Burning 3, 785 liters of fuel an hour, they turn left and right and speed up and slow down as air traffic controllers on the ground try to arrange them like a conga line for their final approach to the runway.

FORBES: Magazine Article