国内锻造线发展历程 锻造是一种古老的工艺,中国的锻造历史可追溯到2000多年前,考古研究表明商代中期就存在热锻工艺,直至近代,锻造主要是以人工作坊的生产方式延续下来.洋务运动时期,通过引进西方国家的蒸汽锤,锻造发展为工业生产.20世纪50年代,新中国从苏联、东德、捷克等国家进口水压机、热模锻压力机及模锻锤等锻造设备,锻造工业进一步发展.到20世纪60年代,中国已经可以自主生产国产锻压设备,锻造行业得以快速发展.
It is an indisputable fact that the educational technology is developing in a multiplex discipline form. And among these di-versity researches about education technology discipline, the research on the ecological view of educational technology is a member of it. In recent years, as a natural science, ecology has been widely applied in the ifelds of politics, economics and education. And at the same time, it has gotten great attention from researchers in the ifeld of educational technology. However, because the educational technology is mainly connected to social and human sciences in nature, its nature of natural science has been overlooked by the aca-demic community. Thus a mature idea and theory about the education technology in the view of natural science nature hasn’t formed by now. And few papers have clearly deifned what the ecology of education technology is. Targeted at this and based on the educa-tion technology ecology theory, the paper discusses the reason why the educational technology research aims are turned to ecological thinking, the concept of ecological view of education technology, and the inlfuences that the concept of ecology have on the develop-ment education technology, which looking forward to be helpful for the following researches.
随着经济的发展,我国企业信息化建设可谓突飞猛进,信息化已经深入到企业生产经营的方各个方面,尤其是中小企业随着业务的发展扩大,企业通信系统的价值也被重点凸显出来.本文就信息化管理的应用、作用影响作了分析,并中小企业应采取的措施给出了一些建议.