报道了利用扫描隧道显微术（STM）对金属表面氧化物层进行电子隧道谱研究的结果。
We have used STM to investigate the electron tunneling spectroscopy, as well as the tunneling barrier heights, in two kinds of iron oxides prepared differently on iron single crystal surfaces.
将氧排斥在外以防止在加热期间金属表面被氧化。
It prevents the oxidation of the metal surfaces during the heating operation by excluding oxygen.
将金属表面的这些污物去除并提供氧化的环境后，就形成了钝化膜并实现了钝化作用。
By removing these soils from the metal surface and providing an oxidizing atmosphere, the passive film is allowed to form and the passivation is accomplished.
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