钢铁研究总院于1979年建成投产国内第一台电火花烧结机。
Central Iron and Steel Research Institute (CISRI) built the first electric spark sintering machine in China in 1979 and put it into production.
钢铁研究总院于1979年建成投产国内第一台电火花烧结机。
Central Iron and Steel Research Institute (CISRI) built the first electric spark sintering machine in China in 1979 and put it into production.
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