1. In the environment of oil refining plant, corrosion is caused mainly by sulfid and acidity medium.
   由于炼油厂装置的腐蚀主要是由原油中的硫化物和酸性介质所产生。
2. When metal-bearing solution moved along deep faults to cavities or frac tures, the metal cations reated with pyrite and organic matter and precipitated as sulfid...
   在构造减压带中，铅锌配合物交代地层中的黄铁矿或被有机质还原而沉淀富集。

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