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| pickling plant Plant where scale is removed from iron and steel usually by means of immersion in a hot hydrochloric or sulphuric acid bath. Wastes include spent pickling liquor, sludges and rinse water (规模化生产钢和铁的工厂通常采用的方法是沉浸在热盐酸或硫酸浴中。废料包括酸洗白酒、污泥和漂洗用水。) | |||
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