Keywords: TiAl intermetallics, high temperature oxidation resistance, surface modification.关键词: 钛铝介金属 、 高温氧化抵抗 、 表面改质.Oil group has good oxidation stability, low pour point, good demulsibility and excellent resistance to...
Twenty million years ago, Idaho was populated by dense primordial forest.2,000万年前，爱达荷州到处都是茂密的原始森林。Twenty million years ago, Idaho was not the arid place it is now. Rather, it was warm and damp, populated by dense primord...