overlapping manner造句

The action of overlapping manner on the microstructure and properties of the hardened layer was analyzed and some fundamentals were discussed . systemic experiments and laser processing of the mould - roller used in packaging machine , the screen - changers used in plastic extruder , the fiber - cutting roller used in chemical plant and the rail used for railway were accomplished . furthermore , the technique of laser hardening for the component parts was obtained and some key technologic problems were successfully solved
并结合工业应用，对包装机械用模切辊、挤塑机换网器、化工行业用过丝辊和铁路钢轨等的激光表面强化技术进行了系统研究，获得了对这些零部件进行激光表面强化的成熟的工艺，解决了这些零部件激光表面强化过程中的关键技术。
It's difficult to find overlapping manner in a sentence. 用overlapping manner造句挺难的