求翻译：该设计通过D锁存器的D、E输入端输入高低电平，经芯片L298N的作用后控制与之连接的步进电机马达从而实现步进电机的前进、后退和保持功能。是什么意思？

The design d latch, d, e input of the input high-low, to control the stepping motor motor connected to it by the role of the chip L298N in order to achieve a stepper motor to move forward, backward and hold function.

This design by D latch D E input port, input high and low level, the chip 298 L N after the role of control and the stepper motors connected to motor stepper motor move forward and backward and Hold functions.

Thus this design through D latch D, the E input end input height level, controls after the chip L298N function with it connection step-by-steps the electrical machinery motor to realize step-by-steps the electrical machinery advance, the backlash and the maintenance function.

The design by d, e d latch input input high and low level, after chip L298N role controlling stepper motors connected to the motor with stepping motor of forward, backward and hold functionality.

正在翻译，请等待...