阐述了稀土钝化膜的防蚀机理。
Corrosion protection mechanism of rare earth passivation was stated.
这是由于蓝白色钝化膜层太薄的缘故。
This is the reason that the blue white passivating film is too thin.
钝化膜可呈现出不同色彩，作装饰用。
B and passivation film can present a different colour, make adornment use.
钝化膜可呈现出不同色彩，作装饰用。
B and passivation film can present a different colour, make adornment use.
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