gangue造句
61 In this paper, coal gangue was activated through calcinations at different temperatures, and the systematic research was carried out about the activation mechanism and the hydration course.
62 In view of the coal gangue here, the article gives a piece of advice that takes mainly grouting and subsidarily sprays the serosity onto high-temperature surface, digging ditches and surface coverage.
63 Based on the characters of Chinese bauxite resources, the separation of diaspore and the main gangue hard kaolinite by reverse flotation was studied preliminarily in this paper.
64 In this paper, calcined coal gangue at different temperatures is studied systematically, so as to look for the optimum calcined temperature, and its activation mechanism is briefly discussed.
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