整流器等相关电子产品的开发研究与生产。
Rectifier, and other related electronic products research and the development of production.
对各粒度级高纯度锑白新产品的研究与生产，具有明确的指导意义。
The investigation has clear guiding significance to the development and production of the new products of high pureness stibium trioxides in all size fractions.
覆铜箔层压板原纸的研究与生产，对造纸业改变产品结构，提高经济效益有着较大的现实意义。
The research and production of copper foil board base paper not only changes the construction of the production in papermaking industry, but also increases the economical benefit.
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