In the mechanical design of the system, screw pair drive is applied to achieve the up-and-down movement.

在该系统的机械设计，双螺杆驱动器是用于实现向上和向下运动。

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In the mechanical design of the system, screw pair drive is applied to achieve the up-and-down movement.

在该系统的机械设计，双螺杆驱动器是用于实现向上和向下运动。

youdao