There were plenty of reasons for the last - minute adjustment 她在最后时间做出这一调整有诸多原因。
2.
This method can decrease the gap setting time for which the oil column of hydraulic cylinder is not retracted and there is no minute adjustment of oil column for the first several passes 采用该方法,轧制过程液压缸油柱不用回缩,而且前面道次液压不进行微调,从而节省了辊缝设定时间。