按价值计算国产化率是比较科学的,但不必追求100%的国产化率。例如,湖北建筑机械厂用引进技术生产的混凝土泵车,国产化率已达85%以上。但关键部件至今仍依靠进口。主要原因是研制费用大、困难多。在国内尚无能力解决关键配套件的情况下,暂用引进件配装,不仅整机可靠性高,而且可以外销,回收外 It is more scientific to calculate the localization rate by value, but it is not necessary to pursue the localization rate of 100%. For example, in Hubei Construction Machinery Plant, concrete pump trucks manufactured using imported technology have achieved domestic production rates of more than 85%. However, key components still rely on imports. The main reason is that the development costs are high and the difficulties are many. In the case that there is no domestic ability to solve key parts, temporarily assembling the imported parts will not only ensure high reliability of the whole machine, but also can be exported and recycled.