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前言我们遵照伟大领袖毛主席关于“独立自主,自力更生”发展国民经济的伟大教导,在东北工学院、沈阳金属研究所的大力协助下,从一九六五年始对铜基新型弹性材料——钛铜合金(以下简称钛铜)进行了研
Preface We follow the great teaching of Chairman Mao Zedong on the development of the national economy “independent and self-reliance”. With the great help of Northeast Institute of Technology and Shenyang Institute of Metal Research, we started to study the new copper-based elastic material - titanium copper Alloy (hereinafter referred to as titanium copper) were studied