方法1：用水清洁溶液清洁表面，向表面应用钝化剂，用去离子水冲洗表面直到全部除去化学试剂的痕迹。
Method 1 clean surface with aqueous cleaning solution, apply passivation paste to surface, rinse surface with DI water until traces of chemicals are removed.
去离子是使自来水通过离子交换柱除去可离子的矿物质。
Deionization removes ionizable minerals from tap water by passing the water through ion-exchange beds.
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