... metallic rheostat 金属线变阻器 metallic scrap 金属废料 metallic silicon 金属硅 ...
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metallic c scrap 金属废料
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However, during the period of circulation use of scrap steel, it causes the content increase unceasingly of the low melting point metallic elements such as Pb in the steel.
但在废钢的循环使用过程中，不可避免地将铅等低熔点金属带入到炼钢炉中。
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