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在20世纪,工程机械的发展走过60年代前的机械传动及控制;60年代到70年代的液压传动和控制;70年代到80年代末的机电液一体化;90年代的机电液计算机一体化阶段。进入21世纪时,信息技术的发展与进步使工程机械的技术提升成为可能;环境保护和人类生存环境的恶化为工程机械的发展提出新课题;非再生资源的无度利用使人类面临的资源危机为工程机械的设计理念、现代化制造提出新的研究方向;以人为本的思想为工程机械在人机工程学上赋予新的
In the 20th century, the development of construction machinery went through mechanical transmission and control before the 1960s; hydraulic transmission and control from the 1960s to the 1970s; electromechanical and hydraulic integration from the 1970s to the end of the 1980s; and electromechanical and liquid computer integration in the 1990s. stage. In the 21st century, the development and progress of information technology has made it possible for technological advancement of construction machinery; environmental protection and the deterioration of the human living environment have raised new issues for the development of construction machinery; the excessive use of non-renewable resources has caused the human resource crisis to be The design concept of construction machinery and modern manufacturing put forward new research directions; the human-oriented idea gives engineering machinery a new dimension in ergonomics.