首页 / 百科 / 内容详情 The tensile strength of steel(MPa) is about 3.4 times of that of Brinell hardness. 2022-04-21 7次阅读 strength of hardness The tensile strength of steel(MPa) is about 3.4 times of that of Brinell hardness. A.正确B.错误正确答案:正确 Advanced materials include semiconductors, biomaterials, smart materials and nanomaterials. Hard materials have good resistance to()and(). 猜你喜欢 Which of the following could be a strength for a business? In the case of Roger, how did the social worker turned a concern into a strength? In Laozi’s opinion, strength is the symbol of life. Xi Jinping proposed “Chinese Dream” and emphasized that ______ is the key strength. The circus acrobats performed feats of ()and strength.