英语词汇“product grade”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	product grade
释义	product grade 基本例句产品档次 With improvement unrefined potassium chloride is directly subjected to carbonization and therefore raises the product quality with similar cost.新工艺的主要改进为氯化钾原料不经精制而直接碳化，从而在成本相仿的情况下提高了产品档次。
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