strength of extension meaning in English

抗拉强度
张拉力强度

For example , bh steel under low strength is pressed and baking finish to improve its strength of extension
例如bh钢板是在低强度的条件下，经过冲压成形之后，进行烤漆加工热处理，以提高其抗拉强度。
This kind of high strength steel is based on low carbon steel which is strengthen , its strength of extension is enhanced by a wide margin
这种高强度钢板是在低碳钢板的基础上采用强化方法得到的，抗拉强度得到大幅增强。
The strength of extension of low carbon ductile cast iron can reach 750mpa in casting state , the impact ductility can reach 20j / cm2 . the diameter of graphite nodule is 5 - 20 ( am , the base body is consisted of pearlite -
低碳球铁在铸态下的抗拉强度可达750mpa ，冲击韧性可达20j cm ~ 2 ，其中石墨球直径在5 20 m ，基体以珠光体为主，有少量的铁素体与渗碳体。
In this paper , two theories to explain the mechanic principles of concrete mixed with fiber are introduced . the two theories are the theory of complex material and the theory of fiber space . the calculate formulas of strength of extension about complex material are deduced
本文介绍了纤维混凝土增强机理的两种理论，即复合材料理论和纤维间距理论，推导了复合材料的抗拉初裂强度计算公式和极限强度公式。