经过二十多年的发展,特别是80年代以后的技术引进,我国液压挖掘技术水平有了很大的提高,产品性能已达到国际80年代初～80年代中的水平,自行设计的新产品和老产品也大多移植或采用了引进技术,生产管理和制造技术也相应有了一些改观,生产厂家除原来的七、八家以外,又增加了40多家,产量近年已达到2300台左右(不包括微型机),少量产品开始打入国际市场,且数量逐年增多。 After more than 20 years of development, especially after the introduction of technology in the 1980s, the level of hydraulic excavation technology in China has been greatly improved. The product performance has reached the international level from the early 1980s to the mid-1980s. New products designed by ourselves and Most of the old products have also been transplanted or introduced using imported technologies. Production management and manufacturing technologies have also seen some improvements. In addition to the original seven or eight, the number of manufacturers has increased by more than 40, and the output has reached about 2,300 in recent years (not Including microcomputers, a small amount of products began to enter the international market, and the number has increased year by year.