There is little study on the selection of liquid of pre - filming after the acid wash by hydroxy ethidine phosphonic acid (HEDP).
羟基乙叉二膦酸酸洗后预膜的选择较少有人研究,而适当的预膜钝化是防止酸洗后金
表面返锈的必要措施。
There is little study on the selection of liquid of pre - filming after the acid wash by hydroxy ethidine phosphonic acid (HEDP).
羟基乙叉二膦酸酸洗后预膜的选择较少有人研究,而适当的预膜钝化是防止酸洗后金
表面返锈的必要措施。
The ash matter of coal is one of main effect factors in various coal researches.In this paper, five methods of acid washing to deash coal were studied.
在对煤优化转化的各类研究中,灰分是不可缺少的影响因素之一。
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