研究稀土和锌对铜基粉末冶金滑板的影响。
The effects of rare-earth elements and zinc on copper matrix slider made by powder metallurgy are investigated.
采用真空硬脂酸锌浸渍封孔及超声波清洗前处理，对铁基粉末冶金件连续化学镀镍。
The electroless Ni plating on Fe-based powder metallurgy articles was continuously carried out with pretreatments of pore sealing by immersing in zinc stearate in vacuum and ultrasonic cleaning.
锌、镉分离与钴、镍分离一样，是湿法冶金、环保及分析化学领域里经常遇到的问题。
The separation of Zinc and Cadmium are often problem as Cobalt and Nickel in hydrometallurgy, environmental protect and analytical chemistry.
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