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燕色金一材料研究高强度低合金钢的冷脆转变与加载速度的关系··,·································……1一3新型热作模具钢CH75的力学性能··············································
A study on the relationship between the cold and brittle transition of high strength low alloy steel and loading speed ················································································ 1 ··· 3 Mechanical Properties of a New Type Hot Work Die Steel CH75 ····················· ··············