的;The Preparation method of cheap aluminium dihydric phosphate and its application in refractories have been intro-duced.
提供
廉价磷酸二氢铝的制
法，
在耐火材料中的应用。
；简The Preparation method of cheap aluminium dihydric phosphate and its application in refractories have been intro-duced.
提供廉价磷酸二氢铝的制法，在耐火材料中的应用。
Oil pump speed regulation technology and the general principle for speed regulator slection are intro-duced.
油泵调速调节技术和选择油泵调速装置的一般原则。
The process of decoppering through insoluble anode electrolysis in the solution produced by leaching high grade matte nickel using chlorine is intro-duced in this paper.
本文氯化浸出高冰镍溶液采用不溶阳极电解脱铜的法。
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