什么是氢损伤?包括那几个类型?
参考答案:
氢渗入金属内部而造成金属性能的恶化和金属与氢反应引起的机械破坏,统称氢损伤。氢损伤有氢鼓包、氢脆、脱碳和氢腐蚀。
-Have you any oranges and apples ?
- .
A.Of course, we have some fruits.
B.The oranges are very cheap.
C.You like apples, don’t you ?
D.Yes , madam, on the second shelf over there.
修改或者补充合伙协议,应当经全体合伙人一致同意;但是,合伙协议另有约定的除外。