十、机床构成比一九七七年在制订航空工艺技术发展规划时,我们曾提到要改变各航空工厂的机床构成比,以适应新机种发展的要求,但当时所考虑的构成比,主要还是指的专用机床与通用机床的比例关系,至于通用机床里,车、铣、磨、刨等的比例应否有所变化,以及机床品种、规 X. Machine tool composition When we worked out the aviation technology development plan in 1977, we mentioned that we must change the machine tool composition ratio of each aviation factory to meet the requirements for the development of new aircraft types. However, the composition ratios considered at that time were Mainly refers to the proportional relationship between special machine tools and general machine tools. As for general-purpose machine tools, the ratio of cars, milling, grinding, planing, etc. should be changed, as well as the types and rules of machine tools.