The alloying elements in bath play a key role in controlling of coating quality.
锌池中合金元素对镀层质量起到关键作用，其成分一般都特别复杂。
To analyze the problem, we must first understand the concept of alloying elements.
要分析这个问题，首先要理解合金元素的概念。
To analyze the problem, we must first understand the concept of alloying elements.
要分析这个问题，首先要理解合金元素的概念。
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