AC digital vector control drive technology 交流数字变频驱动技术 Digital line/edge guide system 数字线/边缘纠偏系统 ..
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交流变频电驱动钻机采用VFD驱动和数字控制技术，可简化绞车结构，提高钻机性能。
AC VFD rig adopts VFD and digital control technology, simplifying the drawworks structure and improving the rig's performance.
该试验台的驱动系统采用交流变频调速技术，加载部分采用先进的步进式数字溢流阀进行加载。
The technology of variable frequency speed governing was used in the driving system of the experiment stand. And the advanced stepping digital overflow valve was adopted in the part of loading.
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