Therefore, as important processes of metallurgical method, vacuum refining and electron beam refining have been widely applied.
因此，真空熔炼及电子束熔炼作为冶金法的重要环节有着广泛的应用。
Therefore, as important processes of metallurgical method, vacuum refining and electron beam refining have been widely applied.
因此，真空熔炼及电子束熔炼作为冶金法的重要环节有着广泛的应用。
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