为了适应我国机床工业发展的需要,遵照毛主席“人类总得不断地总结经验,有所发现,有所发明,有所创造,有所前进”和“古人、外国人的东西也要研究,拒绝研究是错误的,但一定要用批判的眼光去研究,做到古为今用,外为中用”的教导,我们编写了这个材料,供有关干部、工人和设计科研技术人员参考。考虑到国内部分大家比较熟悉和其他一些原因,本篇侧重介绍国外有关情况。资料 In order to meet the needs of the development of China’s machine tool industry, in accordance with Chairman Mao “mankind must constantly sum up experience, found that some inventions, have created, some progress ” and “the ancients, foreigners things have to be studied It is wrong to refuse the study, but we must study it critically to achieve the goal of ”using it for the present and for the benefit of the outside world." We have compiled this material for the reference of cadres, workers, and technicians in scientific research. Taking into account some of the more familiar with some of the domestic and some other reasons, this chapter focuses on the introduction of foreign situation. data