effective rate of metal charge
effective rate of metal charge
有效装药率
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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The relationship between casting yield and effective rate of metal charge, usage ratio of molten iron, technology yield and pass rate of castings were surveyed.
阐述了铸件成品率与金属炉料有效率、铁液利用率、工艺出品率、铸件合格率四个比率的关系，指出了铸件成品率与铸造生产的全过程有关。
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