锅水中H+与金属反应后生成的H2扩散到金属内部,造成碳钢(),金相组织受到破坏的腐蚀称为氢脆。
A.变形
B.鼓包
C.脱碳
D.蠕变
参考答案:C
.
________ has interest in our outdoor adventure club can apply for its membership.
A.No matter who
B.No matter anyone
C.Anyone
D.Whoever
()前に、よく勉強をします。
A.試験
B.試験の
C.試験に
D.試験と