求翻译：从6月14日至6月25日李工程师走后贵公司的机床一直在断断续续加工，在加工过程中右砂轮的右边出现轻微台阶。6月26日加工的第六个工件的第一主轴颈至第四主轴颈、第一连杆颈至第三连杆颈左边出现挺大的台阶，后大修砂轮0.25-0.30mm左右后所加工工件没有出现台阶（砂轮修得太少台阶修不掉）。连续加工10-12件工件后台阶又出现，此台阶现象为右砂轮磨损所导致，由于砂轮修的太多后我公司人员不敢再进行砂轮修整于6月27日停止使用。是什么意思？

From June 14 to June 25 Li engineers left your company's machines have been intermittent processing, a slight step in the right wheel to the right processing. Processing on June 26, the sixth of the workpiece spindle neck to the fourth main journal, the first connecting rod neck to neck on the left

From June 14 to June 25, Lee engineers after the company has been in the intermittent machine, during the course of processing right wheel appears on the right side of the minor level. On 26 June, 6 on the processing of the workpiece to the first main journals 4 main bearing journal, the first linka

From June 14 to engineer Li after