Flexible cellular plastics with skin . cold brittleness test . falling weight test 带皮软微孔塑料.冷却脆裂试验.重物坠落试验
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This paper describes the strength of material and the factors affect it . special analysis and study have been focused on the cold brittleness of metallic material and its affecting factors . major conclusions have been drawn 本文对材料的强度以及对其影响因素进行了阐述，特别对金属材料冷脆性能以及对其影响的因素进行了分析研究，并得出了主要结论。
