If you have the opportunity to drive through the gentle, rolling hills amidst lush farmlands, perhaps you will see a horse and buggy driven by a family dressed mostly in black.
如果你有机会开车穿过那些绿油油农田中静谧、逶迤的山丘，也许你会看见驾着四轮马车大部分都穿着黑衣的一家人。
Windows and frames are navigated and focused on any mouse button click, including rolling the wheel, or alternatively driven entirely by the keyboard.
通过点击鼠标按键，滚动滚轮来导航和聚焦窗口和框架，或者完全的通过键盘来操作。
Second, the thickness control system of cold rolling mills driven by two hydraulic cylinders is taken as the research object.
冷轧机轧制的带材较薄，对同步控制精度的要求更高。
The main bearing and each dial are driven by electromotor of main machine through reducer, and Numbers of roller which are rolling in the ring, which are driven by dial through plunger.
主机电动机通过减速器带动主轴及各层转盘旋转，转盘通过柱销带动几十个环辊在磨环滚道内滚动并旋转。
The rolling transmission is driven by a vector frequency motor and floating roller system and PLC can automatically calculate the reel diameter, achieving the reeling tension conical control.
收卷传动采用矢量变频电机﹑浮动辊系统组成，并通过PLC自动计算卷径实现收卷张力锥度控制；
The rolling transmission is driven by a vector frequency motor and floating roller system and PLC can automatically calculate the reel diameter, achieving the reeling tension conical control.
收卷传动采用矢量变频电机﹑浮动辊系统组成，并通过PLC自动计算卷径实现收卷张力锥度控制；
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