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1. The steel plates were vanadoborided before being welded together.
钢板在焊接之前被钒酸盐处理过。
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2. Thechemical process involves using vanadoboriding to removeimpurities from the metal.
化学过程包括使用钒酸盐去除金属中的杂质。
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3. The engineers used vanadoboriding and other techniques to improvethe strength of the material.
工程师们使用了钒酸盐和其他技术来提高材料的强度。