SEVER
发表于 2025-3-28 15:33:42
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北极熊
发表于 2025-3-28 19:05:25
Electrolytic Refining and Winning of Metals,t cathodes. The electrorefining process was introduced about a hundred years ago to produce a substitute to fire-refined copper. Today, practically all of the world’s copper production (~8,000,000 metric tons/year) is electrorefined, constituting by far the largest electrolytic refining industry. Mu
事先无准备
发表于 2025-3-29 01:23:30
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boisterous
发表于 2025-3-29 04:08:13
Electrochemical Machining,ce. All mechanical machining methods are based on some form of this operation. As the physical properties of new materials, developed to meet the requirements of a continuously advancing technology, reached higher degrees of strength and heat resistance, the demands placed on the properties of the t
Distribution
发表于 2025-3-29 10:51:30
Theory of the Structure of lonomeric Membranes,cial basis in chloralkali separation processes. Its chemical structure, shown in Figure 1, is typical of ionomers. Pendant side chains, each containing an ionizable group, are essentially spaced uniformly along a linear chain composed of relatively nonpolar groups. The number of nonpolar units is fa