ultrasonic immersing超声浸渍 My father is immersing himself in the study of Shakespeare’s works我父亲在专心研究莎士比亚的著作。
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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.
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。
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