The 13-mile drive from Victoria crater had taken three years. But the tiny craft had been documenting its progress, step by step.
从维多利亚陨石坑开始的13英里的路程已经走了3年，但是这个微小的太空船一步一步的记录着它的前行。
The control principle of step motor is exposed, drive control of feed system is carried out by use of motion controller, meanwhile, dot motion control of step motor is also carried out by use of PLC.
阐述了步进电机控制原理，利用运动控制器实现了进给系统的联动控制，利用PLC实现了步进电机的点动控制。
Whether you plan to walk or drive, your route is displayed on the map itself, together with step-by-step directions.
无论是步行还是开车，您的路线会显示在地图上，并将一步步指引您。
Adopt advanced microcomputer controller and step-by-step motor to drive and control the length of bag with stable performance and accurate testing. Meanwhile, it is easy to operate.
采用先进的微电脑控制器，驱动步进电机控制袋长及商标定位，性能稳定、调整方便、检测准确。
At one time, I was afraid to cross the road, watching cars drive from one laugh before the opening of what had legs, but step by step is immune.
曾经，我害怕过马路，看着一辆辆的车从面前嗤的一下开过，脚却一步都难迈出。
Automatic drive system must be studied step by step.
实现自动驾驶不是一躇尔就的。
Automatic drive system must be studied step by step.
实现自动驾驶不是一躇尔就的。
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