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建国以来,我国施工机械化发展很快,迄90年代初期全国土方挖、夯、垂直运输及砼浇灌基本上实现了半机械化和机械化。40多年来施工机械化经历了1958年的放下扁担、机械成龙配套和群众性的技术革新和技术革命,使许多工种的机械化水平有了较大的提高。60年代巩固和发?
Since the founding of the People’s Republic of China, the mechanization of construction in our country has developed rapidly. As early as the beginning of the 1990s, the country’s earthworks for digging, picking, vertical transportation, and flooding were basically semi-mechanized and mechanized. For more than 40 years, the mechanization of construction experienced the laying down of bianlan in 1958, the matching of mechanical finishes, and the technical innovation and technological revolution of the masses, which greatly improved the mechanization level of many types of work. 60 years to consolidate and send?