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来源:雅诚德英语网
The alloying elements used most often in steels are manganese, nickel, molybdenum, and chromium.
钢最常用的添加元素有锰、镍,钼和铬。
The alloying elements used most often in steels are manganese, nickel, molybdenum, and chromium.
钢最常用的添加元素有锰、镍,钼和铬。