The step_motor drives the ball guide screw to rotate after receiving the instruction issued by the computer.

控制系统利用微机对纵、横进给系统开环控制，驱动元件采用直流步进电机，传动系统采用滚珠丝杠。

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Certain corrective actions of this guide may not be feasible with the Compact Ball Valve (sealed unit).

对于紧凑型球阀(密封装置)，本指南的某些纠正措施可能并不可行。

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The guide rod and bearing system support the load while the ball screw drives the load.

该指南杆和轴承系统的负载，同时支持的滚珠丝杠驱动器的负载。

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On 3-point attempts, he leans into the shots slightly, as if to guide the ball telepathically.

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Thomson slid as he tried to guide the ball out for a goal-kick, but only succeed in knocking it out.

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David Robertson's cross was not properly cleared by the Inverness defence and Scott Robertson headed down for Swanson to guide the ball home with his left foot.

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