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工程机械的诞生和发展，解放了劳动力，提高了工程施工的劳动生产率。随着我国人民生活水平和文明程度的不断提高、环保意识的不断增强，人们开始对不尊重人和破坏环境的施工方法和施工机械产生不满，限制和淘汰严重破坏环境的施工方法和施工机械、开发新型绿色的施工新机械已
The birth and development of construction machinery, the liberation of the labor force, improve the labor productivity of construction. With the continuous improvement of people’s living standards and civilizations and the increasing awareness of environmental protection, people are dissatisfied with construction methods and construction machinery that do not respect people and damage the environment, and restrict and eliminate construction methods and construction machinery that seriously damage the environment. Development of new green construction machinery has been