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第一期(总第55期)我国机床工具工业要在治理整顿中获得稳定、协调的发展 .,.........……‘,.......……公..............................……烧结金刚石聚晶体的表面金属化一不······……‘...·····……北京粉末冶金研究所林增棣机械电子部机床主具司(2)北京大学
The first phase (total 55) China’s machine tool industry to be in the rectification and management to achieve stable and coordinated development. ......... ...... ’, ....... ... ... public. ............................... ... Sintered diamond polycrystalline surface of the metal is not ...... ... ’ ... ······················································································································································································