V to render (a metal) less susceptible to corrosion by coating the surface with a substance, such as an oxide 使(金属)钝化
Brush passivating agent on surface very 15 minutes, maintain a wet surface.
在表面上刷钝化剂15分钟，保持表面潮湿。
The ASTM Standard a 380 (1996) refers to these acids as cleaning acids, not passivating acids.
ASTM标准a 380(1996)将这些酸归为清洁用酸而不是钝化用酸。
The chemicals discussed for cleaning and passivating are all water-soluble and can easily be neutralized.
用于清洁和钝化的化学试剂都是水溶性的并且易于中和。
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