direct digital controller

例句：

1. 1.The direct digital controller is used to control the speed of the motor.
   直接数字控制器用于控制电机的速度。
2. 2. The direct digital controller allows for precise adjustment of the system parameters.
   直接数字控制器允许精确调整系统参数。
3. 3.The direct digital controller was developed to improve efficiency and reduce errors in the manufacturing process.
   直接数字控制器被开发出来以提高生产效率和减少生产过程中的错误。