精校机液压位置伺服系统是精校机的执行环节，是决定工件加工精度的关键部分。
Hydraulic position servo system of the precise straightening machine is the executive body and is the key unit to decide the processing precision of the workpiece.
精校机液压伺服系统是精校机的执行环节，是实现校直工艺的必要条件。
The hydraulic-servo system of the precise straightening machine is the executive body and is the essential condition to realize straightening technics.
精校机液压伺服系统是精校机的执行环节，是实现校直工艺的必要条件。
The hydraulic-servo system of the precise straightening machine is the executive body and is the essential condition to realize straightening technics.
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