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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A structural improvement is implemented on the base of an original ball screw pair and a rolling cone screw pair.

它在原滚珠丝杆副，滚锥丝杆副的基础上进行了结构改进。

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Applying the microcontroller and the ball screw pair, a transient throttle control system for engine research is developed.

应用单片机和滚珠丝杠副，研制了发动机瞬态工况试验研究用的油门瞬态控制器。

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The majority of the Replicator's internal space is wide open, save for a build platform that can be adjusted up and down by turning a threaded screw and the gantry atop the space that houses the Stepstruder MK8, whose front is monopolized by a large pair of fans.

ENGADGET: MakerBot Replicator impressions: the dawning of 3D printers in every home?