- 精制: make with extra care; refine ...
- 釜: a kind of cauldron used in a ...
- 精制: [工业] make with extra care; refine; purify; purification; refinement; refinishing; wrought◇精制机 refiner; 精制盐 purified salt
- 胺精制: amine purification
- 电精制: electro finig; electro refining; electrofining; electrorefining
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